replace ini

65 files changed, 5337 insertions, 5323 deletions

diff --git a/vendor/github.com/go-ini/ini/.gitignore b/vendor/github.com/go-ini/ini/.gitignore
deleted file mode 100644
index 1241112..0000000
--- a/vendor/github.com/go-ini/ini/.gitignore
+++ /dev/null
@@ -1,6 +0,0 @@
-testdata/conf_out.ini
-ini.sublime-project
-ini.sublime-workspace
-testdata/conf_reflect.ini
-.idea
-/.vscode
diff --git a/vendor/github.com/go-ini/ini/LICENSE b/vendor/github.com/go-ini/ini/LICENSE
deleted file mode 100644
index d361bbc..0000000
--- a/vendor/github.com/go-ini/ini/LICENSE
+++ /dev/null
@@ -1,191 +0,0 @@
-Apache License
-Version 2.0, January 2004
-http://www.apache.org/licenses/
-
-TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-1. Definitions.
-
-"License" shall mean the terms and conditions for use, reproduction, and
-distribution as defined by Sections 1 through 9 of this document.
-
-"Licensor" shall mean the copyright owner or entity authorized by the copyright
-owner that is granting the License.
-
-"Legal Entity" shall mean the union of the acting entity and all other entities
-that control, are controlled by, or are under common control with that entity.
-For the purposes of this definition, "control" means (i) the power, direct or
-indirect, to cause the direction or management of such entity, whether by
-contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the
-outstanding shares, or (iii) beneficial ownership of such entity.
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-"You" (or "Your") shall mean an individual or Legal Entity exercising
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-"Source" form shall mean the preferred form for making modifications, including
-but not limited to software source code, documentation source, and configuration
-files.
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-translation of a Source form, including but not limited to compiled object code,
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-"Work" shall mean the work of authorship, whether in Source or Object form, made
-available under the License, as indicated by a copyright notice that is included
-in or attached to the work (an example is provided in the Appendix below).
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-"Derivative Works" shall mean any work, whether in Source or Object form, that
-is based on (or derived from) the Work and for which the editorial revisions,
-annotations, elaborations, or other modifications represent, as a whole, an
-original work of authorship. For the purposes of this License, Derivative Works
-shall not include works that remain separable from, or merely link (or bind by
-name) to the interfaces of, the Work and Derivative Works thereof.
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-"Contribution" shall mean any work of authorship, including the original version
-of the Work and any modifications or additions to that Work or Derivative Works
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-additional or different license terms and conditions for use, reproduction, or
-distribution of Your modifications, or for any such Derivative Works as a whole,
-provided Your use, reproduction, and distribution of the Work otherwise complies
-with the conditions stated in this License.
-
-5. Submission of Contributions.
-
-Unless You explicitly state otherwise, any Contribution intentionally submitted
-for inclusion in the Work by You to the Licensor shall be under the terms and
-conditions of this License, without any additional terms or conditions.
-Notwithstanding the above, nothing herein shall supersede or modify the terms of
-any separate license agreement you may have executed with Licensor regarding
-such Contributions.
-
-6. Trademarks.
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-This License does not grant permission to use the trade names, trademarks,
-service marks, or product names of the Licensor, except as required for
-reasonable and customary use in describing the origin of the Work and
-reproducing the content of the NOTICE file.
-
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-Unless required by applicable law or agreed to in writing, Licensor provides the
-Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
-including, without limitation, any warranties or conditions of TITLE,
-NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are
-solely responsible for determining the appropriateness of using or
-redistributing the Work and assume any risks associated with Your exercise of
-permissions under this License.
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-8. Limitation of Liability.
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-In no event and under no legal theory, whether in tort (including negligence),
-contract, or otherwise, unless required by applicable law (such as deliberate
-and grossly negligent acts) or agreed to in writing, shall any Contributor be
-liable to You for damages, including any direct, indirect, special, incidental,
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-accepting any such warranty or additional liability.
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-
-APPENDIX: How to apply the Apache License to your work
-
-To apply the Apache License to your work, attach the following boilerplate
-notice, with the fields enclosed by brackets "[]" replaced with your own
-identifying information. (Don't include the brackets!) The text should be
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-the same "printed page" as the copyright notice for easier identification within
-third-party archives.
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-   Copyright 2014 Unknwon
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
diff --git a/vendor/github.com/go-ini/ini/Makefile b/vendor/github.com/go-ini/ini/Makefile
deleted file mode 100644
index 1316911..0000000
--- a/vendor/github.com/go-ini/ini/Makefile
+++ /dev/null
@@ -1,15 +0,0 @@
-.PHONY: build test bench vet coverage
-
-build: vet bench
-
-test:
-	go test -v -cover -race
-
-bench:
-	go test -v -cover -race -test.bench=. -test.benchmem
-
-vet:
-	go vet
-
-coverage:
-	go test -coverprofile=c.out && go tool cover -html=c.out && rm c.out
\ No newline at end of file
diff --git a/vendor/github.com/go-ini/ini/README.md b/vendor/github.com/go-ini/ini/README.md
deleted file mode 100644
index f4ff27c..0000000
--- a/vendor/github.com/go-ini/ini/README.md
+++ /dev/null
@@ -1,763 +0,0 @@
-INI [![Build Status](https://travis-ci.org/go-ini/ini.svg?branch=master)](https://travis-ci.org/go-ini/ini) [![Sourcegraph](https://sourcegraph.com/github.com/go-ini/ini/-/badge.svg)](https://sourcegraph.com/github.com/go-ini/ini?badge)
-===
-
-![](https://avatars0.githubusercontent.com/u/10216035?v=3&s=200)
-
-Package ini provides INI file read and write functionality in Go.
-
-[简体中文](README_ZH.md)
-
-## Feature
-
-- Load multiple data sources(`[]byte`, file and `io.ReadCloser`) with overwrites.
-- Read with recursion values.
-- Read with parent-child sections.
-- Read with auto-increment key names.
-- Read with multiple-line values.
-- Read with tons of helper methods.
-- Read and convert values to Go types.
-- Read and **WRITE** comments of sections and keys.
-- Manipulate sections, keys and comments with ease.
-- Keep sections and keys in order as you parse and save.
-
-## Installation
-
-To use a tagged revision:
-
-	go get gopkg.in/ini.v1
-
-To use with latest changes:
-
-	go get github.com/go-ini/ini
-
-Please add `-u` flag to update in the future.
-
-### Testing
-
-If you want to test on your machine, please apply `-t` flag:
-
-	go get -t gopkg.in/ini.v1
-
-Please add `-u` flag to update in the future.
-
-## Getting Started
-
-### Loading from data sources
-
-A **Data Source** is either raw data in type `[]byte`, a file name with type `string` or `io.ReadCloser`. You can load **as many data sources as you want**. Passing other types will simply return an error.
-
-```go
-cfg, err := ini.Load([]byte("raw data"), "filename", ioutil.NopCloser(bytes.NewReader([]byte("some other data"))))
-```
-
-Or start with an empty object:
-
-```go
-cfg := ini.Empty()
-```
-
-When you cannot decide how many data sources to load at the beginning, you will still be able to **Append()** them later.
-
-```go
-err := cfg.Append("other file", []byte("other raw data"))
-```
-
-If you have a list of files with possibilities that some of them may not available at the time, and you don't know exactly which ones, you can use `LooseLoad` to ignore nonexistent files without returning error.
-
-```go
-cfg, err := ini.LooseLoad("filename", "filename_404")
-```
-
-The cool thing is, whenever the file is available to load while you're calling `Reload` method, it will be counted as usual.
-
-#### Ignore cases of key name
-
-When you do not care about cases of section and key names, you can use `InsensitiveLoad` to force all names to be lowercased while parsing.
-
-```go
-cfg, err := ini.InsensitiveLoad("filename")
-//...
-
-// sec1 and sec2 are the exactly same section object
-sec1, err := cfg.GetSection("Section")
-sec2, err := cfg.GetSection("SecTIOn")
-
-// key1 and key2 are the exactly same key object
-key1, err := sec1.GetKey("Key")
-key2, err := sec2.GetKey("KeY")
-```
-
-#### MySQL-like boolean key 
-
-MySQL's configuration allows a key without value as follows:
-
-```ini
-[mysqld]
-...
-skip-host-cache
-skip-name-resolve
-```
-
-By default, this is considered as missing value. But if you know you're going to deal with those cases, you can assign advanced load options:
-
-```go
-cfg, err := ini.LoadSources(ini.LoadOptions{AllowBooleanKeys: true}, "my.cnf"))
-```
-
-The value of those keys are always `true`, and when you save to a file, it will keep in the same foramt as you read.
-
-To generate such keys in your program, you could use `NewBooleanKey`:
-
-```go
-key, err := sec.NewBooleanKey("skip-host-cache")
-```
-
-#### Comment
-
-Take care that following format will be treated as comment:
-
-1. Line begins with `#` or `;`
-2. Words after `#` or `;`
-3. Words after section name (i.e words after `[some section name]`)
-
-If you want to save a value with `#` or `;`, please quote them with ``` ` ``` or ``` """ ```.
-
-Alternatively, you can use following `LoadOptions` to completely ignore inline comments:
-
-```go
-cfg, err := ini.LoadSources(ini.LoadOptions{IgnoreInlineComment: true}, "app.ini"))
-```
-
-### Working with sections
-
-To get a section, you would need to:
-
-```go
-section, err := cfg.GetSection("section name")
-```
-
-For a shortcut for default section, just give an empty string as name:
-
-```go
-section, err := cfg.GetSection("")
-```
-
-When you're pretty sure the section exists, following code could make your life easier:
-
-```go
-section := cfg.Section("section name")
-```
-
-What happens when the section somehow does not exist? Don't panic, it automatically creates and returns a new section to you.
-
-To create a new section:
-
-```go
-err := cfg.NewSection("new section")
-```
-
-To get a list of sections or section names:
-
-```go
-sections := cfg.Sections()
-names := cfg.SectionStrings()
-```
-
-### Working with keys
-
-To get a key under a section:
-
-```go
-key, err := cfg.Section("").GetKey("key name")
-```
-
-Same rule applies to key operations:
-
-```go
-key := cfg.Section("").Key("key name")
-```
-
-To check if a key exists:
-
-```go
-yes := cfg.Section("").HasKey("key name")
-```
-
-To create a new key:
-
-```go
-err := cfg.Section("").NewKey("name", "value")
-```
-
-To get a list of keys or key names:
-
-```go
-keys := cfg.Section("").Keys()
-names := cfg.Section("").KeyStrings()
-```
-
-To get a clone hash of keys and corresponding values:
-
-```go
-hash := cfg.Section("").KeysHash()
-```
-
-### Working with values
-
-To get a string value:
-
-```go
-val := cfg.Section("").Key("key name").String()
-```
-
-To validate key value on the fly:
-
-```go
-val := cfg.Section("").Key("key name").Validate(func(in string) string {
-	if len(in) == 0 {
-		return "default"
-	}
-	return in
-})
-```
-
-If you do not want any auto-transformation (such as recursive read) for the values, you can get raw value directly (this way you get much better performance):
-
-```go
-val := cfg.Section("").Key("key name").Value()
-```
-
-To check if raw value exists:
-
-```go
-yes := cfg.Section("").HasValue("test value")
-```
-
-To get value with types:
-
-```go
-// For boolean values:
-// true when value is: 1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On
-// false when value is: 0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off
-v, err = cfg.Section("").Key("BOOL").Bool()
-v, err = cfg.Section("").Key("FLOAT64").Float64()
-v, err = cfg.Section("").Key("INT").Int()
-v, err = cfg.Section("").Key("INT64").Int64()
-v, err = cfg.Section("").Key("UINT").Uint()
-v, err = cfg.Section("").Key("UINT64").Uint64()
-v, err = cfg.Section("").Key("TIME").TimeFormat(time.RFC3339)
-v, err = cfg.Section("").Key("TIME").Time() // RFC3339
-
-v = cfg.Section("").Key("BOOL").MustBool()
-v = cfg.Section("").Key("FLOAT64").MustFloat64()
-v = cfg.Section("").Key("INT").MustInt()
-v = cfg.Section("").Key("INT64").MustInt64()
-v = cfg.Section("").Key("UINT").MustUint()
-v = cfg.Section("").Key("UINT64").MustUint64()
-v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339)
-v = cfg.Section("").Key("TIME").MustTime() // RFC3339
-
-// Methods start with Must also accept one argument for default value
-// when key not found or fail to parse value to given type.
-// Except method MustString, which you have to pass a default value.
-
-v = cfg.Section("").Key("String").MustString("default")
-v = cfg.Section("").Key("BOOL").MustBool(true)
-v = cfg.Section("").Key("FLOAT64").MustFloat64(1.25)
-v = cfg.Section("").Key("INT").MustInt(10)
-v = cfg.Section("").Key("INT64").MustInt64(99)
-v = cfg.Section("").Key("UINT").MustUint(3)
-v = cfg.Section("").Key("UINT64").MustUint64(6)
-v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339, time.Now())
-v = cfg.Section("").Key("TIME").MustTime(time.Now()) // RFC3339
-```
-
-What if my value is three-line long?
-
-```ini
-[advance]
-ADDRESS = """404 road,
-NotFound, State, 5000
-Earth"""
-```
-
-Not a problem!
-
-```go
-cfg.Section("advance").Key("ADDRESS").String()
-
-/* --- start ---
-404 road,
-NotFound, State, 5000
-Earth
-------  end  --- */
-```
-
-That's cool, how about continuation lines?
-
-```ini
-[advance]
-two_lines = how about \
-	continuation lines?
-lots_of_lines = 1 \
-	2 \
-	3 \
-	4
-```
-
-Piece of cake!
-
-```go
-cfg.Section("advance").Key("two_lines").String() // how about continuation lines?
-cfg.Section("advance").Key("lots_of_lines").String() // 1 2 3 4
-```
-
-Well, I hate continuation lines, how do I disable that?
-
-```go
-cfg, err := ini.LoadSources(ini.LoadOptions{
-	IgnoreContinuation: true,
-}, "filename")
-```
-
-Holy crap! 
-
-Note that single quotes around values will be stripped:
-
-```ini
-foo = "some value" // foo: some value
-bar = 'some value' // bar: some value
-```
-
-Sometimes you downloaded file from [Crowdin](https://crowdin.com/) has values like the following (value is surrounded by double quotes and quotes in the value are escaped):
-
-```ini
-create_repo="created repository <a href=\"%s\">%s</a>"
-```
-
-How do you transform this to regular format automatically?
-
-```go
-cfg, err := ini.LoadSources(ini.LoadOptions{UnescapeValueDoubleQuotes: true}, "en-US.ini"))
-cfg.Section("<name of your section>").Key("create_repo").String() 
-// You got: created repository <a href="%s">%s</a>
-```
-
-That's all? Hmm, no.
-
-#### Helper methods of working with values
-
-To get value with given candidates:
-
-```go
-v = cfg.Section("").Key("STRING").In("default", []string{"str", "arr", "types"})
-v = cfg.Section("").Key("FLOAT64").InFloat64(1.1, []float64{1.25, 2.5, 3.75})
-v = cfg.Section("").Key("INT").InInt(5, []int{10, 20, 30})
-v = cfg.Section("").Key("INT64").InInt64(10, []int64{10, 20, 30})
-v = cfg.Section("").Key("UINT").InUint(4, []int{3, 6, 9})
-v = cfg.Section("").Key("UINT64").InUint64(8, []int64{3, 6, 9})
-v = cfg.Section("").Key("TIME").InTimeFormat(time.RFC3339, time.Now(), []time.Time{time1, time2, time3})
-v = cfg.Section("").Key("TIME").InTime(time.Now(), []time.Time{time1, time2, time3}) // RFC3339
-```
-
-Default value will be presented if value of key is not in candidates you given, and default value does not need be one of candidates.
-
-To validate value in a given range:
-
-```go
-vals = cfg.Section("").Key("FLOAT64").RangeFloat64(0.0, 1.1, 2.2)
-vals = cfg.Section("").Key("INT").RangeInt(0, 10, 20)
-vals = cfg.Section("").Key("INT64").RangeInt64(0, 10, 20)
-vals = cfg.Section("").Key("UINT").RangeUint(0, 3, 9)
-vals = cfg.Section("").Key("UINT64").RangeUint64(0, 3, 9)
-vals = cfg.Section("").Key("TIME").RangeTimeFormat(time.RFC3339, time.Now(), minTime, maxTime)
-vals = cfg.Section("").Key("TIME").RangeTime(time.Now(), minTime, maxTime) // RFC3339
-```
-
-##### Auto-split values into a slice
-
-To use zero value of type for invalid inputs:
-
-```go
-// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
-// Input: how, 2.2, are, you -> [0.0 2.2 0.0 0.0]
-vals = cfg.Section("").Key("STRINGS").Strings(",")
-vals = cfg.Section("").Key("FLOAT64S").Float64s(",")
-vals = cfg.Section("").Key("INTS").Ints(",")
-vals = cfg.Section("").Key("INT64S").Int64s(",")
-vals = cfg.Section("").Key("UINTS").Uints(",")
-vals = cfg.Section("").Key("UINT64S").Uint64s(",")
-vals = cfg.Section("").Key("TIMES").Times(",")
-```
-
-To exclude invalid values out of result slice:
-
-```go
-// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
-// Input: how, 2.2, are, you -> [2.2]
-vals = cfg.Section("").Key("FLOAT64S").ValidFloat64s(",")
-vals = cfg.Section("").Key("INTS").ValidInts(",")
-vals = cfg.Section("").Key("INT64S").ValidInt64s(",")
-vals = cfg.Section("").Key("UINTS").ValidUints(",")
-vals = cfg.Section("").Key("UINT64S").ValidUint64s(",")
-vals = cfg.Section("").Key("TIMES").ValidTimes(",")
-```
-
-Or to return nothing but error when have invalid inputs:
-
-```go
-// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
-// Input: how, 2.2, are, you -> error
-vals = cfg.Section("").Key("FLOAT64S").StrictFloat64s(",")
-vals = cfg.Section("").Key("INTS").StrictInts(",")
-vals = cfg.Section("").Key("INT64S").StrictInt64s(",")
-vals = cfg.Section("").Key("UINTS").StrictUints(",")
-vals = cfg.Section("").Key("UINT64S").StrictUint64s(",")
-vals = cfg.Section("").Key("TIMES").StrictTimes(",")
-```
-
-### Save your configuration
-
-Finally, it's time to save your configuration to somewhere.
-
-A typical way to save configuration is writing it to a file:
-
-```go
-// ...
-err = cfg.SaveTo("my.ini")
-err = cfg.SaveToIndent("my.ini", "\t")
-```
-
-Another way to save is writing to a `io.Writer` interface:
-
-```go
-// ...
-cfg.WriteTo(writer)
-cfg.WriteToIndent(writer, "\t")
-```
-
-By default, spaces are used to align "=" sign between key and values, to disable that:
-
-```go
-ini.PrettyFormat = false
-``` 
-
-## Advanced Usage
-
-### Recursive Values
-
-For all value of keys, there is a special syntax `%(<name>)s`, where `<name>` is the key name in same section or default section, and `%(<name>)s` will be replaced by corresponding value(empty string if key not found). You can use this syntax at most 99 level of recursions.
-
-```ini
-NAME = ini
-
-[author]
-NAME = Unknwon
-GITHUB = https://github.com/%(NAME)s
-
-[package]
-FULL_NAME = github.com/go-ini/%(NAME)s
-```
-
-```go
-cfg.Section("author").Key("GITHUB").String()		// https://github.com/Unknwon
-cfg.Section("package").Key("FULL_NAME").String()	// github.com/go-ini/ini
-```
-
-### Parent-child Sections
-
-You can use `.` in section name to indicate parent-child relationship between two or more sections. If the key not found in the child section, library will try again on its parent section until there is no parent section.
-
-```ini
-NAME = ini
-VERSION = v1
-IMPORT_PATH = gopkg.in/%(NAME)s.%(VERSION)s
-
-[package]
-CLONE_URL = https://%(IMPORT_PATH)s
-
-[package.sub]
-```
-
-```go
-cfg.Section("package.sub").Key("CLONE_URL").String()	// https://gopkg.in/ini.v1
-```
-
-#### Retrieve parent keys available to a child section
-
-```go
-cfg.Section("package.sub").ParentKeys() // ["CLONE_URL"]
-```
-
-### Unparseable Sections
-
-Sometimes, you have sections that do not contain key-value pairs but raw content, to handle such case, you can use `LoadOptions.UnparsableSections`:
-
-```go
-cfg, err := ini.LoadSources(ini.LoadOptions{UnparseableSections: []string{"COMMENTS"}}, `[COMMENTS]
-<1><L.Slide#2> This slide has the fuel listed in the wrong units <e.1>`))
-
-body := cfg.Section("COMMENTS").Body()
-
-/* --- start ---
-<1><L.Slide#2> This slide has the fuel listed in the wrong units <e.1>
-------  end  --- */
-```
-
-### Auto-increment Key Names
-
-If key name is `-` in data source, then it would be seen as special syntax for auto-increment key name start from 1, and every section is independent on counter.
-
-```ini
-[features]
--: Support read/write comments of keys and sections
--: Support auto-increment of key names
--: Support load multiple files to overwrite key values
-```
-
-```go
-cfg.Section("features").KeyStrings()	// []{"#1", "#2", "#3"}
-```
-
-### Map To Struct
-
-Want more objective way to play with INI? Cool.
-
-```ini
-Name = Unknwon
-age = 21
-Male = true
-Born = 1993-01-01T20:17:05Z
-
-[Note]
-Content = Hi is a good man!
-Cities = HangZhou, Boston
-```
-
-```go
-type Note struct {
-	Content string
-	Cities  []string
-}
-
-type Person struct {
-	Name string
-	Age  int `ini:"age"`
-	Male bool
-	Born time.Time
-	Note
-	Created time.Time `ini:"-"`
-}
-
-func main() {
-	cfg, err := ini.Load("path/to/ini")
-	// ...
-	p := new(Person)
-	err = cfg.MapTo(p)
-	// ...
-
-	// Things can be simpler.
-	err = ini.MapTo(p, "path/to/ini")
-	// ...
-
-	// Just map a section? Fine.
-	n := new(Note)
-	err = cfg.Section("Note").MapTo(n)
-	// ...
-}
-```
-
-Can I have default value for field? Absolutely.
-
-Assign it before you map to struct. It will keep the value as it is if the key is not presented or got wrong type.
-
-```go
-// ...
-p := &Person{
-	Name: "Joe",
-}
-// ...
-```
-
-It's really cool, but what's the point if you can't give me my file back from struct?
-
-### Reflect From Struct
-
-Why not?
-
-```go
-type Embeded struct {
-	Dates  []time.Time `delim:"|" comment:"Time data"`
-	Places []string    `ini:"places,omitempty"`
-	None   []int       `ini:",omitempty"`
-}
-
-type Author struct {
-	Name      string `ini:"NAME"`
-	Male      bool
-	Age       int `comment:"Author's age"`
-	GPA       float64
-	NeverMind string `ini:"-"`
-	*Embeded `comment:"Embeded section"`
-}
-
-func main() {
-	a := &Author{"Unknwon", true, 21, 2.8, "",
-		&Embeded{
-			[]time.Time{time.Now(), time.Now()},
-			[]string{"HangZhou", "Boston"},
-			[]int{},
-		}}
-	cfg := ini.Empty()
-	err = ini.ReflectFrom(cfg, a)
-	// ...
-}
-```
-
-So, what do I get?
-
-```ini
-NAME = Unknwon
-Male = true
-; Author's age
-Age = 21
-GPA = 2.8
-
-; Embeded section
-[Embeded]
-; Time data
-Dates = 2015-08-07T22:14:22+08:00|2015-08-07T22:14:22+08:00
-places = HangZhou,Boston
-```
-
-#### Name Mapper
-
-To save your time and make your code cleaner, this library supports [`NameMapper`](https://gowalker.org/gopkg.in/ini.v1#NameMapper) between struct field and actual section and key name.
-
-There are 2 built-in name mappers:
-
-- `AllCapsUnderscore`: it converts to format `ALL_CAPS_UNDERSCORE` then match section or key.
-- `TitleUnderscore`: it converts to format `title_underscore` then match section or key.
-
-To use them:
-
-```go
-type Info struct {
-	PackageName string
-}
-
-func main() {
-	err = ini.MapToWithMapper(&Info{}, ini.TitleUnderscore, []byte("package_name=ini"))
-	// ...
-
-	cfg, err := ini.Load([]byte("PACKAGE_NAME=ini"))
-	// ...
-	info := new(Info)
-	cfg.NameMapper = ini.AllCapsUnderscore
-	err = cfg.MapTo(info)
-	// ...
-}
-```
-
-Same rules of name mapper apply to `ini.ReflectFromWithMapper` function.
-
-#### Value Mapper
-
-To expand values (e.g. from environment variables), you can use the `ValueMapper` to transform values:
-
-```go
-type Env struct {
-	Foo string `ini:"foo"`
-}
-
-func main() {
-	cfg, err := ini.Load([]byte("[env]\nfoo = ${MY_VAR}\n")
-	cfg.ValueMapper = os.ExpandEnv
-	// ...
-	env := &Env{}
-	err = cfg.Section("env").MapTo(env)
-}
-```
-
-This would set the value of `env.Foo` to the value of the environment variable `MY_VAR`.
-
-#### Other Notes On Map/Reflect
-
-Any embedded struct is treated as a section by default, and there is no automatic parent-child relations in map/reflect feature:
-
-```go
-type Child struct {
-	Age string
-}
-
-type Parent struct {
-	Name string
-	Child
-}
-
-type Config struct {
-	City string
-	Parent
-}
-```
-
-Example configuration:
-
-```ini
-City = Boston
-
-[Parent]
-Name = Unknwon
-
-[Child]
-Age = 21
-```
-
-What if, yes, I'm paranoid, I want embedded struct to be in the same section. Well, all roads lead to Rome.
-
-```go
-type Child struct {
-	Age string
-}
-
-type Parent struct {
-	Name string
-	Child `ini:"Parent"`
-}
-
-type Config struct {
-	City string
-	Parent
-}
-```
-
-Example configuration:
-
-```ini
-City = Boston
-
-[Parent]
-Name = Unknwon
-Age = 21
-```
-
-## Getting Help
-
-- [API Documentation](https://gowalker.org/gopkg.in/ini.v1)
-- [File An Issue](https://github.com/go-ini/ini/issues/new)
-
-## FAQs
-
-### What does `BlockMode` field do?
-
-By default, library lets you read and write values so we need a locker to make sure your data is safe. But in cases that you are very sure about only reading data through the library, you can set `cfg.BlockMode = false` to speed up read operations about **50-70%** faster.
-
-### Why another INI library?
-
-Many people are using my another INI library [goconfig](https://github.com/Unknwon/goconfig), so the reason for this one is I would like to make more Go style code. Also when you set `cfg.BlockMode = false`, this one is about **10-30%** faster.
-
-To make those changes I have to confirm API broken, so it's safer to keep it in another place and start using `gopkg.in` to version my package at this time.(PS: shorter import path)
-
-## License
-
-This project is under Apache v2 License. See the [LICENSE](LICENSE) file for the full license text.
diff --git a/vendor/github.com/go-ini/ini/README_ZH.md b/vendor/github.com/go-ini/ini/README_ZH.md
deleted file mode 100644
index 69aefef..0000000
--- a/vendor/github.com/go-ini/ini/README_ZH.md
+++ /dev/null
@@ -1,750 +0,0 @@
-本包提供了 Go 语言中读写 INI 文件的功能。
-
-## 功能特性
-
-- 支持覆盖加载多个数据源（`[]byte`、文件和 `io.ReadCloser`）
-- 支持递归读取键值
-- 支持读取父子分区
-- 支持读取自增键名
-- 支持读取多行的键值
-- 支持大量辅助方法
-- 支持在读取时直接转换为 Go 语言类型
-- 支持读取和 **写入** 分区和键的注释
-- 轻松操作分区、键值和注释
-- 在保存文件时分区和键值会保持原有的顺序
-
-## 下载安装
-
-使用一个特定版本：
-
-    go get gopkg.in/ini.v1
-
-使用最新版：
-
-	go get github.com/go-ini/ini
-
-如需更新请添加 `-u` 选项。
-
-### 测试安装
-
-如果您想要在自己的机器上运行测试，请使用 `-t` 标记：
-
-	go get -t gopkg.in/ini.v1
-
-如需更新请添加 `-u` 选项。
-
-## 开始使用
-
-### 从数据源加载
-
-一个 **数据源** 可以是 `[]byte` 类型的原始数据，`string` 类型的文件路径或 `io.ReadCloser`。您可以加载 **任意多个** 数据源。如果您传递其它类型的数据源，则会直接返回错误。
-
-```go
-cfg, err := ini.Load([]byte("raw data"), "filename", ioutil.NopCloser(bytes.NewReader([]byte("some other data"))))
-```
-
-或者从一个空白的文件开始：
-
-```go
-cfg := ini.Empty()
-```
-
-当您在一开始无法决定需要加载哪些数据源时，仍可以使用 **Append()** 在需要的时候加载它们。
-
-```go
-err := cfg.Append("other file", []byte("other raw data"))
-```
-
-当您想要加载一系列文件，但是不能够确定其中哪些文件是不存在的，可以通过调用函数 `LooseLoad` 来忽略它们（`Load` 会因为文件不存在而返回错误）：
-
-```go
-cfg, err := ini.LooseLoad("filename", "filename_404")
-```
-
-更牛逼的是，当那些之前不存在的文件在重新调用 `Reload` 方法的时候突然出现了，那么它们会被正常加载。
-
-#### 忽略键名的大小写
-
-有时候分区和键的名称大小写混合非常烦人，这个时候就可以通过 `InsensitiveLoad` 将所有分区和键名在读取里强制转换为小写：
-
-```go
-cfg, err := ini.InsensitiveLoad("filename")
-//...
-
-// sec1 和 sec2 指向同一个分区对象
-sec1, err := cfg.GetSection("Section")
-sec2, err := cfg.GetSection("SecTIOn")
-
-// key1 和 key2 指向同一个键对象
-key1, err := sec1.GetKey("Key")
-key2, err := sec2.GetKey("KeY")
-```
-
-#### 类似 MySQL 配置中的布尔值键
-
-MySQL 的配置文件中会出现没有具体值的布尔类型的键：
-
-```ini
-[mysqld]
-...
-skip-host-cache
-skip-name-resolve
-```
-
-默认情况下这被认为是缺失值而无法完成解析，但可以通过高级的加载选项对它们进行处理：
-
-```go
-cfg, err := ini.LoadSources(ini.LoadOptions{AllowBooleanKeys: true}, "my.cnf"))
-```
-
-这些键的值永远为 `true`，且在保存到文件时也只会输出键名。
-
-如果您想要通过程序来生成此类键，则可以使用 `NewBooleanKey`：
-
-```go
-key, err := sec.NewBooleanKey("skip-host-cache")
-```
-
-#### 关于注释
-
-下述几种情况的内容将被视为注释：
-
-1. 所有以 `#` 或 `;` 开头的行
-2. 所有在 `#` 或 `;` 之后的内容
-3. 分区标签后的文字 (即 `[分区名]` 之后的内容)
-
-如果你希望使用包含 `#` 或 `;` 的值，请使用 ``` ` ``` 或 ``` """ ``` 进行包覆。
-
-除此之外，您还可以通过 `LoadOptions` 完全忽略行内注释：
-
-```go
-cfg, err := ini.LoadSources(ini.LoadOptions{IgnoreInlineComment: true}, "app.ini"))
-```
-
-### 操作分区（Section）
-
-获取指定分区：
-
-```go
-section, err := cfg.GetSection("section name")
-```
-
-如果您想要获取默认分区，则可以用空字符串代替分区名：
-
-```go
-section, err := cfg.GetSection("")
-```
-
-当您非常确定某个分区是存在的，可以使用以下简便方法：
-
-```go
-section := cfg.Section("section name")
-```
-
-如果不小心判断错了，要获取的分区其实是不存在的，那会发生什么呢？没事的，它会自动创建并返回一个对应的分区对象给您。
-
-创建一个分区：
-
-```go
-err := cfg.NewSection("new section")
-```
-
-获取所有分区对象或名称：
-
-```go
-sections := cfg.Sections()
-names := cfg.SectionStrings()
-```
-
-### 操作键（Key）
-
-获取某个分区下的键：
-
-```go
-key, err := cfg.Section("").GetKey("key name")
-```
-
-和分区一样，您也可以直接获取键而忽略错误处理：
-
-```go
-key := cfg.Section("").Key("key name")
-```
-
-判断某个键是否存在：
-
-```go
-yes := cfg.Section("").HasKey("key name")
-```
-
-创建一个新的键：
-
-```go
-err := cfg.Section("").NewKey("name", "value")
-```
-
-获取分区下的所有键或键名：
-
-```go
-keys := cfg.Section("").Keys()
-names := cfg.Section("").KeyStrings()
-```
-
-获取分区下的所有键值对的克隆：
-
-```go
-hash := cfg.Section("").KeysHash()
-```
-
-### 操作键值（Value）
-
-获取一个类型为字符串（string）的值：
-
-```go
-val := cfg.Section("").Key("key name").String()
-```
-
-获取值的同时通过自定义函数进行处理验证：
-
-```go
-val := cfg.Section("").Key("key name").Validate(func(in string) string {
-	if len(in) == 0 {
-		return "default"
-	}
-	return in
-})
-```
-
-如果您不需要任何对值的自动转变功能（例如递归读取），可以直接获取原值（这种方式性能最佳）：
-
-```go
-val := cfg.Section("").Key("key name").Value()
-```
-
-判断某个原值是否存在：
-
-```go
-yes := cfg.Section("").HasValue("test value")
-```
-
-获取其它类型的值：
-
-```go
-// 布尔值的规则：
-// true 当值为：1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On
-// false 当值为：0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off
-v, err = cfg.Section("").Key("BOOL").Bool()
-v, err = cfg.Section("").Key("FLOAT64").Float64()
-v, err = cfg.Section("").Key("INT").Int()
-v, err = cfg.Section("").Key("INT64").Int64()
-v, err = cfg.Section("").Key("UINT").Uint()
-v, err = cfg.Section("").Key("UINT64").Uint64()
-v, err = cfg.Section("").Key("TIME").TimeFormat(time.RFC3339)
-v, err = cfg.Section("").Key("TIME").Time() // RFC3339
-
-v = cfg.Section("").Key("BOOL").MustBool()
-v = cfg.Section("").Key("FLOAT64").MustFloat64()
-v = cfg.Section("").Key("INT").MustInt()
-v = cfg.Section("").Key("INT64").MustInt64()
-v = cfg.Section("").Key("UINT").MustUint()
-v = cfg.Section("").Key("UINT64").MustUint64()
-v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339)
-v = cfg.Section("").Key("TIME").MustTime() // RFC3339
-
-// 由 Must 开头的方法名允许接收一个相同类型的参数来作为默认值，
-// 当键不存在或者转换失败时，则会直接返回该默认值。
-// 但是，MustString 方法必须传递一个默认值。
-
-v = cfg.Seciont("").Key("String").MustString("default")
-v = cfg.Section("").Key("BOOL").MustBool(true)
-v = cfg.Section("").Key("FLOAT64").MustFloat64(1.25)
-v = cfg.Section("").Key("INT").MustInt(10)
-v = cfg.Section("").Key("INT64").MustInt64(99)
-v = cfg.Section("").Key("UINT").MustUint(3)
-v = cfg.Section("").Key("UINT64").MustUint64(6)
-v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339, time.Now())
-v = cfg.Section("").Key("TIME").MustTime(time.Now()) // RFC3339
-```
-
-如果我的值有好多行怎么办？
-
-```ini
-[advance]
-ADDRESS = """404 road,
-NotFound, State, 5000
-Earth"""
-```
-
-嗯哼？小 case！
-
-```go
-cfg.Section("advance").Key("ADDRESS").String()
-
-/* --- start ---
-404 road,
-NotFound, State, 5000
-Earth
-------  end  --- */
-```
-
-赞爆了！那要是我属于一行的内容写不下想要写到第二行怎么办？
-
-```ini
-[advance]
-two_lines = how about \
-	continuation lines?
-lots_of_lines = 1 \
-	2 \
-	3 \
-	4
-```
-
-简直是小菜一碟！
-
-```go
-cfg.Section("advance").Key("two_lines").String() // how about continuation lines?
-cfg.Section("advance").Key("lots_of_lines").String() // 1 2 3 4
-```
-
-可是我有时候觉得两行连在一起特别没劲，怎么才能不自动连接两行呢？
-
-```go
-cfg, err := ini.LoadSources(ini.LoadOptions{
-	IgnoreContinuation: true,
-}, "filename")
-```
-
-哇靠给力啊！
-
-需要注意的是，值两侧的单引号会被自动剔除：
-
-```ini
-foo = "some value" // foo: some value
-bar = 'some value' // bar: some value
-```
-
-有时您会获得像从 [Crowdin](https://crowdin.com/) 网站下载的文件那样具有特殊格式的值（值使用双引号括起来，内部的双引号被转义）：
-
-```ini
-create_repo="创建了仓库 <a href=\"%s\">%s</a>"
-```
-
-那么，怎么自动地将这类值进行处理呢？
-
-```go
-cfg, err := ini.LoadSources(ini.LoadOptions{UnescapeValueDoubleQuotes: true}, "en-US.ini"))
-cfg.Section("<name of your section>").Key("create_repo").String() 
-// You got: 创建了仓库 <a href="%s">%s</a>
-```
-
-这就是全部了？哈哈，当然不是。
-
-#### 操作键值的辅助方法
-
-获取键值时设定候选值：
-
-```go
-v = cfg.Section("").Key("STRING").In("default", []string{"str", "arr", "types"})
-v = cfg.Section("").Key("FLOAT64").InFloat64(1.1, []float64{1.25, 2.5, 3.75})
-v = cfg.Section("").Key("INT").InInt(5, []int{10, 20, 30})
-v = cfg.Section("").Key("INT64").InInt64(10, []int64{10, 20, 30})
-v = cfg.Section("").Key("UINT").InUint(4, []int{3, 6, 9})
-v = cfg.Section("").Key("UINT64").InUint64(8, []int64{3, 6, 9})
-v = cfg.Section("").Key("TIME").InTimeFormat(time.RFC3339, time.Now(), []time.Time{time1, time2, time3})
-v = cfg.Section("").Key("TIME").InTime(time.Now(), []time.Time{time1, time2, time3}) // RFC3339
-```
-
-如果获取到的值不是候选值的任意一个，则会返回默认值，而默认值不需要是候选值中的一员。
-
-验证获取的值是否在指定范围内：
-
-```go
-vals = cfg.Section("").Key("FLOAT64").RangeFloat64(0.0, 1.1, 2.2)
-vals = cfg.Section("").Key("INT").RangeInt(0, 10, 20)
-vals = cfg.Section("").Key("INT64").RangeInt64(0, 10, 20)
-vals = cfg.Section("").Key("UINT").RangeUint(0, 3, 9)
-vals = cfg.Section("").Key("UINT64").RangeUint64(0, 3, 9)
-vals = cfg.Section("").Key("TIME").RangeTimeFormat(time.RFC3339, time.Now(), minTime, maxTime)
-vals = cfg.Section("").Key("TIME").RangeTime(time.Now(), minTime, maxTime) // RFC3339
-```
-
-##### 自动分割键值到切片（slice）
-
-当存在无效输入时，使用零值代替：
-
-```go
-// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
-// Input: how, 2.2, are, you -> [0.0 2.2 0.0 0.0]
-vals = cfg.Section("").Key("STRINGS").Strings(",")
-vals = cfg.Section("").Key("FLOAT64S").Float64s(",")
-vals = cfg.Section("").Key("INTS").Ints(",")
-vals = cfg.Section("").Key("INT64S").Int64s(",")
-vals = cfg.Section("").Key("UINTS").Uints(",")
-vals = cfg.Section("").Key("UINT64S").Uint64s(",")
-vals = cfg.Section("").Key("TIMES").Times(",")
-```
-
-从结果切片中剔除无效输入：
-
-```go
-// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
-// Input: how, 2.2, are, you -> [2.2]
-vals = cfg.Section("").Key("FLOAT64S").ValidFloat64s(",")
-vals = cfg.Section("").Key("INTS").ValidInts(",")
-vals = cfg.Section("").Key("INT64S").ValidInt64s(",")
-vals = cfg.Section("").Key("UINTS").ValidUints(",")
-vals = cfg.Section("").Key("UINT64S").ValidUint64s(",")
-vals = cfg.Section("").Key("TIMES").ValidTimes(",")
-```
-
-当存在无效输入时，直接返回错误：
-
-```go
-// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
-// Input: how, 2.2, are, you -> error
-vals = cfg.Section("").Key("FLOAT64S").StrictFloat64s(",")
-vals = cfg.Section("").Key("INTS").StrictInts(",")
-vals = cfg.Section("").Key("INT64S").StrictInt64s(",")
-vals = cfg.Section("").Key("UINTS").StrictUints(",")
-vals = cfg.Section("").Key("UINT64S").StrictUint64s(",")
-vals = cfg.Section("").Key("TIMES").StrictTimes(",")
-```
-
-### 保存配置
-
-终于到了这个时刻，是时候保存一下配置了。
-
-比较原始的做法是输出配置到某个文件：
-
-```go
-// ...
-err = cfg.SaveTo("my.ini")
-err = cfg.SaveToIndent("my.ini", "\t")
-```
-
-另一个比较高级的做法是写入到任何实现 `io.Writer` 接口的对象中：
-
-```go
-// ...
-cfg.WriteTo(writer)
-cfg.WriteToIndent(writer, "\t")
-```
-
-默认情况下，空格将被用于对齐键值之间的等号以美化输出结果，以下代码可以禁用该功能：
-
-```go
-ini.PrettyFormat = false
-``` 
-
-## 高级用法
-
-### 递归读取键值
-
-在获取所有键值的过程中，特殊语法 `%(<name>)s` 会被应用，其中 `<name>` 可以是相同分区或者默认分区下的键名。字符串 `%(<name>)s` 会被相应的键值所替代，如果指定的键不存在，则会用空字符串替代。您可以最多使用 99 层的递归嵌套。
-
-```ini
-NAME = ini
-
-[author]
-NAME = Unknwon
-GITHUB = https://github.com/%(NAME)s
-
-[package]
-FULL_NAME = github.com/go-ini/%(NAME)s
-```
-
-```go
-cfg.Section("author").Key("GITHUB").String()		// https://github.com/Unknwon
-cfg.Section("package").Key("FULL_NAME").String()	// github.com/go-ini/ini
-```
-
-### 读取父子分区
-
-您可以在分区名称中使用 `.` 来表示两个或多个分区之间的父子关系。如果某个键在子分区中不存在，则会去它的父分区中再次寻找，直到没有父分区为止。
-
-```ini
-NAME = ini
-VERSION = v1
-IMPORT_PATH = gopkg.in/%(NAME)s.%(VERSION)s
-
-[package]
-CLONE_URL = https://%(IMPORT_PATH)s
-
-[package.sub]
-```
-
-```go
-cfg.Section("package.sub").Key("CLONE_URL").String()	// https://gopkg.in/ini.v1
-```
-
-#### 获取上级父分区下的所有键名
-
-```go
-cfg.Section("package.sub").ParentKeys() // ["CLONE_URL"]
-```
-
-### 无法解析的分区
-
-如果遇到一些比较特殊的分区，它们不包含常见的键值对，而是没有固定格式的纯文本，则可以使用 `LoadOptions.UnparsableSections` 进行处理：
-
-```go
-cfg, err := LoadSources(ini.LoadOptions{UnparseableSections: []string{"COMMENTS"}}, `[COMMENTS]
-<1><L.Slide#2> This slide has the fuel listed in the wrong units <e.1>`))
-
-body := cfg.Section("COMMENTS").Body()
-
-/* --- start ---
-<1><L.Slide#2> This slide has the fuel listed in the wrong units <e.1>
-------  end  --- */
-```
-
-### 读取自增键名
-
-如果数据源中的键名为 `-`，则认为该键使用了自增键名的特殊语法。计数器从 1 开始，并且分区之间是相互独立的。
-
-```ini
-[features]
--: Support read/write comments of keys and sections
--: Support auto-increment of key names
--: Support load multiple files to overwrite key values
-```
-
-```go
-cfg.Section("features").KeyStrings()	// []{"#1", "#2", "#3"}
-```
-
-### 映射到结构
-
-想要使用更加面向对象的方式玩转 INI 吗？好主意。
-
-```ini
-Name = Unknwon
-age = 21
-Male = true
-Born = 1993-01-01T20:17:05Z
-
-[Note]
-Content = Hi is a good man!
-Cities = HangZhou, Boston
-```
-
-```go
-type Note struct {
-	Content string
-	Cities  []string
-}
-
-type Person struct {
-	Name string
-	Age  int `ini:"age"`
-	Male bool
-	Born time.Time
-	Note
-	Created time.Time `ini:"-"`
-}
-
-func main() {
-	cfg, err := ini.Load("path/to/ini")
-	// ...
-	p := new(Person)
-	err = cfg.MapTo(p)
-	// ...
-
-	// 一切竟可以如此的简单。
-	err = ini.MapTo(p, "path/to/ini")
-	// ...
-
-	// 嗯哼？只需要映射一个分区吗？
-	n := new(Note)
-	err = cfg.Section("Note").MapTo(n)
-	// ...
-}
-```
-
-结构的字段怎么设置默认值呢？很简单，只要在映射之前对指定字段进行赋值就可以了。如果键未找到或者类型错误，该值不会发生改变。
-
-```go
-// ...
-p := &Person{
-	Name: "Joe",
-}
-// ...
-```
-
-这样玩 INI 真的好酷啊！然而，如果不能还给我原来的配置文件，有什么卵用？
-
-### 从结构反射
-
-可是，我有说不能吗？
-
-```go
-type Embeded struct {
-	Dates  []time.Time `delim:"|" comment:"Time data"`
-	Places []string    `ini:"places,omitempty"`
-	None   []int       `ini:",omitempty"`
-}
-
-type Author struct {
-	Name      string `ini:"NAME"`
-	Male      bool
-	Age       int `comment:"Author's age"`
-	GPA       float64
-	NeverMind string `ini:"-"`
-	*Embeded `comment:"Embeded section"`
-}
-
-func main() {
-	a := &Author{"Unknwon", true, 21, 2.8, "",
-		&Embeded{
-			[]time.Time{time.Now(), time.Now()},
-			[]string{"HangZhou", "Boston"},
-			[]int{},
-		}}
-	cfg := ini.Empty()
-	err = ini.ReflectFrom(cfg, a)
-	// ...
-}
-```
-
-瞧瞧，奇迹发生了。
-
-```ini
-NAME = Unknwon
-Male = true
-; Author's age
-Age = 21
-GPA = 2.8
-
-; Embeded section
-[Embeded]
-; Time data
-Dates = 2015-08-07T22:14:22+08:00|2015-08-07T22:14:22+08:00
-places = HangZhou,Boston
-```
-
-#### 名称映射器（Name Mapper）
-
-为了节省您的时间并简化代码，本库支持类型为 [`NameMapper`](https://gowalker.org/gopkg.in/ini.v1#NameMapper) 的名称映射器，该映射器负责结构字段名与分区名和键名之间的映射。
-
-目前有 2 款内置的映射器：
-
-- `AllCapsUnderscore`：该映射器将字段名转换至格式 `ALL_CAPS_UNDERSCORE` 后再去匹配分区名和键名。
-- `TitleUnderscore`：该映射器将字段名转换至格式 `title_underscore` 后再去匹配分区名和键名。
-
-使用方法：
-
-```go
-type Info struct{
-	PackageName string
-}
-
-func main() {
-	err = ini.MapToWithMapper(&Info{}, ini.TitleUnderscore, []byte("package_name=ini"))
-	// ...
-
-	cfg, err := ini.Load([]byte("PACKAGE_NAME=ini"))
-	// ...
-	info := new(Info)
-	cfg.NameMapper = ini.AllCapsUnderscore
-	err = cfg.MapTo(info)
-	// ...
-}
-```
-
-使用函数 `ini.ReflectFromWithMapper` 时也可应用相同的规则。
-
-#### 值映射器（Value Mapper）
-
-值映射器允许使用一个自定义函数自动展开值的具体内容，例如：运行时获取环境变量：
-
-```go
-type Env struct {
-	Foo string `ini:"foo"`
-}
-
-func main() {
-	cfg, err := ini.Load([]byte("[env]\nfoo = ${MY_VAR}\n")
-	cfg.ValueMapper = os.ExpandEnv
-	// ...
-	env := &Env{}
-	err = cfg.Section("env").MapTo(env)
-}
-```
-
-本例中，`env.Foo` 将会是运行时所获取到环境变量 `MY_VAR` 的值。
-
-#### 映射/反射的其它说明
-
-任何嵌入的结构都会被默认认作一个不同的分区，并且不会自动产生所谓的父子分区关联：
-
-```go
-type Child struct {
-	Age string
-}
-
-type Parent struct {
-	Name string
-	Child
-}
-
-type Config struct {
-	City string
-	Parent
-}
-```
-
-示例配置文件：
-
-```ini
-City = Boston
-
-[Parent]
-Name = Unknwon
-
-[Child]
-Age = 21
-```
-
-很好，但是，我就是要嵌入结构也在同一个分区。好吧，你爹是李刚！
-
-```go
-type Child struct {
-	Age string
-}
-
-type Parent struct {
-	Name string
-	Child `ini:"Parent"`
-}
-
-type Config struct {
-	City string
-	Parent
-}
-```
-
-示例配置文件：
-
-```ini
-City = Boston
-
-[Parent]
-Name = Unknwon
-Age = 21
-```
-
-## 获取帮助
-
-- [API 文档](https://gowalker.org/gopkg.in/ini.v1)
-- [创建工单](https://github.com/go-ini/ini/issues/new)
-
-## 常见问题
-
-### 字段 `BlockMode` 是什么？
-
-默认情况下，本库会在您进行读写操作时采用锁机制来确保数据时间。但在某些情况下，您非常确定只进行读操作。此时，您可以通过设置 `cfg.BlockMode = false` 来将读操作提升大约 **50-70%** 的性能。
-
-### 为什么要写另一个 INI 解析库？
-
-许多人都在使用我的 [goconfig](https://github.com/Unknwon/goconfig) 来完成对 INI 文件的操作，但我希望使用更加 Go 风格的代码。并且当您设置 `cfg.BlockMode = false` 时，会有大约 **10-30%** 的性能提升。
-
-为了做出这些改变，我必须对 API 进行破坏，所以新开一个仓库是最安全的做法。除此之外，本库直接使用 `gopkg.in` 来进行版本化发布。（其实真相是导入路径更短了）
diff --git a/vendor/github.com/go-ini/ini/error.go b/vendor/github.com/go-ini/ini/error.go
deleted file mode 100644
index 80afe74..0000000
--- a/vendor/github.com/go-ini/ini/error.go
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright 2016 Unknwon
-//
-// Licensed under the Apache License, Version 2.0 (the "License"): you may
-// not use this file except in compliance with the License. You may obtain
-// a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations
-// under the License.
-
-package ini
-
-import (
-	"fmt"
-)
-
-type ErrDelimiterNotFound struct {
-	Line string
-}
-
-func IsErrDelimiterNotFound(err error) bool {
-	_, ok := err.(ErrDelimiterNotFound)
-	return ok
-}
-
-func (err ErrDelimiterNotFound) Error() string {
-	return fmt.Sprintf("key-value delimiter not found: %s", err.Line)
-}
diff --git a/vendor/github.com/go-ini/ini/file.go b/vendor/github.com/go-ini/ini/file.go
deleted file mode 100644
index ce26c3b..0000000
--- a/vendor/github.com/go-ini/ini/file.go
+++ /dev/null
@@ -1,398 +0,0 @@
-// Copyright 2017 Unknwon
-//
-// Licensed under the Apache License, Version 2.0 (the "License"): you may
-// not use this file except in compliance with the License. You may obtain
-// a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations
-// under the License.
-
-package ini
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"os"
-	"strings"
-	"sync"
-)
-
-// File represents a combination of a or more INI file(s) in memory.
-type File struct {
-	options     LoadOptions
-	dataSources []dataSource
-
-	// Should make things safe, but sometimes doesn't matter.
-	BlockMode bool
-	lock      sync.RWMutex
-
-	// To keep data in order.
-	sectionList []string
-	// Actual data is stored here.
-	sections map[string]*Section
-
-	NameMapper
-	ValueMapper
-}
-
-// newFile initializes File object with given data sources.
-func newFile(dataSources []dataSource, opts LoadOptions) *File {
-	return &File{
-		BlockMode:   true,
-		dataSources: dataSources,
-		sections:    make(map[string]*Section),
-		sectionList: make([]string, 0, 10),
-		options:     opts,
-	}
-}
-
-// Empty returns an empty file object.
-func Empty() *File {
-	// Ignore error here, we sure our data is good.
-	f, _ := Load([]byte(""))
-	return f
-}
-
-// NewSection creates a new section.
-func (f *File) NewSection(name string) (*Section, error) {
-	if len(name) == 0 {
-		return nil, errors.New("error creating new section: empty section name")
-	} else if f.options.Insensitive && name != DEFAULT_SECTION {
-		name = strings.ToLower(name)
-	}
-
-	if f.BlockMode {
-		f.lock.Lock()
-		defer f.lock.Unlock()
-	}
-
-	if inSlice(name, f.sectionList) {
-		return f.sections[name], nil
-	}
-
-	f.sectionList = append(f.sectionList, name)
-	f.sections[name] = newSection(f, name)
-	return f.sections[name], nil
-}
-
-// NewRawSection creates a new section with an unparseable body.
-func (f *File) NewRawSection(name, body string) (*Section, error) {
-	section, err := f.NewSection(name)
-	if err != nil {
-		return nil, err
-	}
-
-	section.isRawSection = true
-	section.rawBody = body
-	return section, nil
-}
-
-// NewSections creates a list of sections.
-func (f *File) NewSections(names ...string) (err error) {
-	for _, name := range names {
-		if _, err = f.NewSection(name); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// GetSection returns section by given name.
-func (f *File) GetSection(name string) (*Section, error) {
-	if len(name) == 0 {
-		name = DEFAULT_SECTION
-	}
-	if f.options.Insensitive {
-		name = strings.ToLower(name)
-	}
-
-	if f.BlockMode {
-		f.lock.RLock()
-		defer f.lock.RUnlock()
-	}
-
-	sec := f.sections[name]
-	if sec == nil {
-		return nil, fmt.Errorf("section '%s' does not exist", name)
-	}
-	return sec, nil
-}
-
-// Section assumes named section exists and returns a zero-value when not.
-func (f *File) Section(name string) *Section {
-	sec, err := f.GetSection(name)
-	if err != nil {
-		// Note: It's OK here because the only possible error is empty section name,
-		// but if it's empty, this piece of code won't be executed.
-		sec, _ = f.NewSection(name)
-		return sec
-	}
-	return sec
-}
-
-// Section returns list of Section.
-func (f *File) Sections() []*Section {
-	sections := make([]*Section, len(f.sectionList))
-	for i := range f.sectionList {
-		sections[i] = f.Section(f.sectionList[i])
-	}
-	return sections
-}
-
-// ChildSections returns a list of child sections of given section name.
-func (f *File) ChildSections(name string) []*Section {
-	return f.Section(name).ChildSections()
-}
-
-// SectionStrings returns list of section names.
-func (f *File) SectionStrings() []string {
-	list := make([]string, len(f.sectionList))
-	copy(list, f.sectionList)
-	return list
-}
-
-// DeleteSection deletes a section.
-func (f *File) DeleteSection(name string) {
-	if f.BlockMode {
-		f.lock.Lock()
-		defer f.lock.Unlock()
-	}
-
-	if len(name) == 0 {
-		name = DEFAULT_SECTION
-	}
-
-	for i, s := range f.sectionList {
-		if s == name {
-			f.sectionList = append(f.sectionList[:i], f.sectionList[i+1:]...)
-			delete(f.sections, name)
-			return
-		}
-	}
-}
-
-func (f *File) reload(s dataSource) error {
-	r, err := s.ReadCloser()
-	if err != nil {
-		return err
-	}
-	defer r.Close()
-
-	return f.parse(r)
-}
-
-// Reload reloads and parses all data sources.
-func (f *File) Reload() (err error) {
-	for _, s := range f.dataSources {
-		if err = f.reload(s); err != nil {
-			// In loose mode, we create an empty default section for nonexistent files.
-			if os.IsNotExist(err) && f.options.Loose {
-				f.parse(bytes.NewBuffer(nil))
-				continue
-			}
-			return err
-		}
-	}
-	return nil
-}
-
-// Append appends one or more data sources and reloads automatically.
-func (f *File) Append(source interface{}, others ...interface{}) error {
-	ds, err := parseDataSource(source)
-	if err != nil {
-		return err
-	}
-	f.dataSources = append(f.dataSources, ds)
-	for _, s := range others {
-		ds, err = parseDataSource(s)
-		if err != nil {
-			return err
-		}
-		f.dataSources = append(f.dataSources, ds)
-	}
-	return f.Reload()
-}
-
-func (f *File) writeToBuffer(indent string) (*bytes.Buffer, error) {
-	equalSign := "="
-	if PrettyFormat {
-		equalSign = " = "
-	}
-
-	// Use buffer to make sure target is safe until finish encoding.
-	buf := bytes.NewBuffer(nil)
-	for i, sname := range f.sectionList {
-		sec := f.Section(sname)
-		if len(sec.Comment) > 0 {
-			if sec.Comment[0] != '#' && sec.Comment[0] != ';' {
-				sec.Comment = "; " + sec.Comment
-			} else {
-				sec.Comment = sec.Comment[:1] + " " + strings.TrimSpace(sec.Comment[1:])
-			}
-			if _, err := buf.WriteString(sec.Comment + LineBreak); err != nil {
-				return nil, err
-			}
-		}
-
-		if i > 0 || DefaultHeader {
-			if _, err := buf.WriteString("[" + sname + "]" + LineBreak); err != nil {
-				return nil, err
-			}
-		} else {
-			// Write nothing if default section is empty
-			if len(sec.keyList) == 0 {
-				continue
-			}
-		}
-
-		if sec.isRawSection {
-			if _, err := buf.WriteString(sec.rawBody); err != nil {
-				return nil, err
-			}
-
-			if PrettySection {
-				// Put a line between sections
-				if _, err := buf.WriteString(LineBreak); err != nil {
-					return nil, err
-				}
-			}
-			continue
-		}
-
-		// Count and generate alignment length and buffer spaces using the
-		// longest key. Keys may be modifed if they contain certain characters so
-		// we need to take that into account in our calculation.
-		alignLength := 0
-		if PrettyFormat {
-			for _, kname := range sec.keyList {
-				keyLength := len(kname)
-				// First case will surround key by ` and second by """
-				if strings.ContainsAny(kname, "\"=:") {
-					keyLength += 2
-				} else if strings.Contains(kname, "`") {
-					keyLength += 6
-				}
-
-				if keyLength > alignLength {
-					alignLength = keyLength
-				}
-			}
-		}
-		alignSpaces := bytes.Repeat([]byte(" "), alignLength)
-
-	KEY_LIST:
-		for _, kname := range sec.keyList {
-			key := sec.Key(kname)
-			if len(key.Comment) > 0 {
-				if len(indent) > 0 && sname != DEFAULT_SECTION {
-					buf.WriteString(indent)
-				}
-				if key.Comment[0] != '#' && key.Comment[0] != ';' {
-					key.Comment = "; " + key.Comment
-				} else {
-					key.Comment = key.Comment[:1] + " " + strings.TrimSpace(key.Comment[1:])
-				}
-				if _, err := buf.WriteString(key.Comment + LineBreak); err != nil {
-					return nil, err
-				}
-			}
-
-			if len(indent) > 0 && sname != DEFAULT_SECTION {
-				buf.WriteString(indent)
-			}
-
-			switch {
-			case key.isAutoIncrement:
-				kname = "-"
-			case strings.ContainsAny(kname, "\"=:"):
-				kname = "`" + kname + "`"
-			case strings.Contains(kname, "`"):
-				kname = `"""` + kname + `"""`
-			}
-
-			for _, val := range key.ValueWithShadows() {
-				if _, err := buf.WriteString(kname); err != nil {
-					return nil, err
-				}
-
-				if key.isBooleanType {
-					if kname != sec.keyList[len(sec.keyList)-1] {
-						buf.WriteString(LineBreak)
-					}
-					continue KEY_LIST
-				}
-
-				// Write out alignment spaces before "=" sign
-				if PrettyFormat {
-					buf.Write(alignSpaces[:alignLength-len(kname)])
-				}
-
-				// In case key value contains "\n", "`", "\"", "#" or ";"
-				if strings.ContainsAny(val, "\n`") {
-					val = `"""` + val + `"""`
-				} else if !f.options.IgnoreInlineComment && strings.ContainsAny(val, "#;") {
-					val = "`" + val + "`"
-				}
-				if _, err := buf.WriteString(equalSign + val + LineBreak); err != nil {
-					return nil, err
-				}
-			}
-
-			for _, val := range key.nestedValues {
-				if _, err := buf.WriteString(indent + "  " + val + LineBreak); err != nil {
-					return nil, err
-				}
-			}
-		}
-
-		if PrettySection {
-			// Put a line between sections
-			if _, err := buf.WriteString(LineBreak); err != nil {
-				return nil, err
-			}
-		}
-	}
-
-	return buf, nil
-}
-
-// WriteToIndent writes content into io.Writer with given indention.
-// If PrettyFormat has been set to be true,
-// it will align "=" sign with spaces under each section.
-func (f *File) WriteToIndent(w io.Writer, indent string) (int64, error) {
-	buf, err := f.writeToBuffer(indent)
-	if err != nil {
-		return 0, err
-	}
-	return buf.WriteTo(w)
-}
-
-// WriteTo writes file content into io.Writer.
-func (f *File) WriteTo(w io.Writer) (int64, error) {
-	return f.WriteToIndent(w, "")
-}
-
-// SaveToIndent writes content to file system with given value indention.
-func (f *File) SaveToIndent(filename, indent string) error {
-	// Note: Because we are truncating with os.Create,
-	// 	so it's safer to save to a temporary file location and rename afte done.
-	buf, err := f.writeToBuffer(indent)
-	if err != nil {
-		return err
-	}
-
-	return ioutil.WriteFile(filename, buf.Bytes(), 0666)
-}
-
-// SaveTo writes content to file system.
-func (f *File) SaveTo(filename string) error {
-	return f.SaveToIndent(filename, "")
-}
diff --git a/vendor/github.com/go-ini/ini/ini.go b/vendor/github.com/go-ini/ini/ini.go
deleted file mode 100644
index 535d358..0000000
--- a/vendor/github.com/go-ini/ini/ini.go
+++ /dev/null
@@ -1,194 +0,0 @@
-// Copyright 2014 Unknwon
-//
-// Licensed under the Apache License, Version 2.0 (the "License"): you may
-// not use this file except in compliance with the License. You may obtain
-// a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations
-// under the License.
-
-// Package ini provides INI file read and write functionality in Go.
-package ini
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"os"
-	"regexp"
-	"runtime"
-)
-
-const (
-	// Name for default section. You can use this constant or the string literal.
-	// In most of cases, an empty string is all you need to access the section.
-	DEFAULT_SECTION = "DEFAULT"
-
-	// Maximum allowed depth when recursively substituing variable names.
-	_DEPTH_VALUES = 99
-	_VERSION      = "1.32.0"
-)
-
-// Version returns current package version literal.
-func Version() string {
-	return _VERSION
-}
-
-var (
-	// Delimiter to determine or compose a new line.
-	// This variable will be changed to "\r\n" automatically on Windows
-	// at package init time.
-	LineBreak = "\n"
-
-	// Variable regexp pattern: %(variable)s
-	varPattern = regexp.MustCompile(`%\(([^\)]+)\)s`)
-
-	// Indicate whether to align "=" sign with spaces to produce pretty output
-	// or reduce all possible spaces for compact format.
-	PrettyFormat = true
-
-	// Explicitly write DEFAULT section header
-	DefaultHeader = false
-
-	// Indicate whether to put a line between sections
-	PrettySection = true
-)
-
-func init() {
-	if runtime.GOOS == "windows" {
-		LineBreak = "\r\n"
-	}
-}
-
-func inSlice(str string, s []string) bool {
-	for _, v := range s {
-		if str == v {
-			return true
-		}
-	}
-	return false
-}
-
-// dataSource is an interface that returns object which can be read and closed.
-type dataSource interface {
-	ReadCloser() (io.ReadCloser, error)
-}
-
-// sourceFile represents an object that contains content on the local file system.
-type sourceFile struct {
-	name string
-}
-
-func (s sourceFile) ReadCloser() (_ io.ReadCloser, err error) {
-	return os.Open(s.name)
-}
-
-// sourceData represents an object that contains content in memory.
-type sourceData struct {
-	data []byte
-}
-
-func (s *sourceData) ReadCloser() (io.ReadCloser, error) {
-	return ioutil.NopCloser(bytes.NewReader(s.data)), nil
-}
-
-// sourceReadCloser represents an input stream with Close method.
-type sourceReadCloser struct {
-	reader io.ReadCloser
-}
-
-func (s *sourceReadCloser) ReadCloser() (io.ReadCloser, error) {
-	return s.reader, nil
-}
-
-func parseDataSource(source interface{}) (dataSource, error) {
-	switch s := source.(type) {
-	case string:
-		return sourceFile{s}, nil
-	case []byte:
-		return &sourceData{s}, nil
-	case io.ReadCloser:
-		return &sourceReadCloser{s}, nil
-	default:
-		return nil, fmt.Errorf("error parsing data source: unknown type '%s'", s)
-	}
-}
-
-type LoadOptions struct {
-	// Loose indicates whether the parser should ignore nonexistent files or return error.
-	Loose bool
-	// Insensitive indicates whether the parser forces all section and key names to lowercase.
-	Insensitive bool
-	// IgnoreContinuation indicates whether to ignore continuation lines while parsing.
-	IgnoreContinuation bool
-	// IgnoreInlineComment indicates whether to ignore comments at the end of value and treat it as part of value.
-	IgnoreInlineComment bool
-	// AllowBooleanKeys indicates whether to allow boolean type keys or treat as value is missing.
-	// This type of keys are mostly used in my.cnf.
-	AllowBooleanKeys bool
-	// AllowShadows indicates whether to keep track of keys with same name under same section.
-	AllowShadows bool
-	// AllowNestedValues indicates whether to allow AWS-like nested values.
-	// Docs: http://docs.aws.amazon.com/cli/latest/topic/config-vars.html#nested-values
-	AllowNestedValues bool
-	// UnescapeValueDoubleQuotes indicates whether to unescape double quotes inside value to regular format
-	// when value is surrounded by double quotes, e.g. key="a \"value\"" => key=a "value"
-	UnescapeValueDoubleQuotes bool
-	// UnescapeValueCommentSymbols indicates to unescape comment symbols (\# and \;) inside value to regular format
-	// when value is NOT surrounded by any quotes.
-	// Note: UNSTABLE, behavior might change to only unescape inside double quotes but may noy necessary at all.
-	UnescapeValueCommentSymbols bool
-	// Some INI formats allow group blocks that store a block of raw content that doesn't otherwise
-	// conform to key/value pairs. Specify the names of those blocks here.
-	UnparseableSections []string
-}
-
-func LoadSources(opts LoadOptions, source interface{}, others ...interface{}) (_ *File, err error) {
-	sources := make([]dataSource, len(others)+1)
-	sources[0], err = parseDataSource(source)
-	if err != nil {
-		return nil, err
-	}
-	for i := range others {
-		sources[i+1], err = parseDataSource(others[i])
-		if err != nil {
-			return nil, err
-		}
-	}
-	f := newFile(sources, opts)
-	if err = f.Reload(); err != nil {
-		return nil, err
-	}
-	return f, nil
-}
-
-// Load loads and parses from INI data sources.
-// Arguments can be mixed of file name with string type, or raw data in []byte.
-// It will return error if list contains nonexistent files.
-func Load(source interface{}, others ...interface{}) (*File, error) {
-	return LoadSources(LoadOptions{}, source, others...)
-}
-
-// LooseLoad has exactly same functionality as Load function
-// except it ignores nonexistent files instead of returning error.
-func LooseLoad(source interface{}, others ...interface{}) (*File, error) {
-	return LoadSources(LoadOptions{Loose: true}, source, others...)
-}
-
-// InsensitiveLoad has exactly same functionality as Load function
-// except it forces all section and key names to be lowercased.
-func InsensitiveLoad(source interface{}, others ...interface{}) (*File, error) {
-	return LoadSources(LoadOptions{Insensitive: true}, source, others...)
-}
-
-// InsensitiveLoad has exactly same functionality as Load function
-// except it allows have shadow keys.
-func ShadowLoad(source interface{}, others ...interface{}) (*File, error) {
-	return LoadSources(LoadOptions{AllowShadows: true}, source, others...)
-}
diff --git a/vendor/github.com/go-ini/ini/key.go b/vendor/github.com/go-ini/ini/key.go
deleted file mode 100644
index 7c8566a..0000000
--- a/vendor/github.com/go-ini/ini/key.go
+++ /dev/null
@@ -1,751 +0,0 @@
-// Copyright 2014 Unknwon
-//
-// Licensed under the Apache License, Version 2.0 (the "License"): you may
-// not use this file except in compliance with the License. You may obtain
-// a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations
-// under the License.
-
-package ini
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"strconv"
-	"strings"
-	"time"
-)
-
-// Key represents a key under a section.
-type Key struct {
-	s               *Section
-	Comment         string
-	name            string
-	value           string
-	isAutoIncrement bool
-	isBooleanType   bool
-
-	isShadow bool
-	shadows  []*Key
-
-	nestedValues []string
-}
-
-// newKey simply return a key object with given values.
-func newKey(s *Section, name, val string) *Key {
-	return &Key{
-		s:     s,
-		name:  name,
-		value: val,
-	}
-}
-
-func (k *Key) addShadow(val string) error {
-	if k.isShadow {
-		return errors.New("cannot add shadow to another shadow key")
-	} else if k.isAutoIncrement || k.isBooleanType {
-		return errors.New("cannot add shadow to auto-increment or boolean key")
-	}
-
-	shadow := newKey(k.s, k.name, val)
-	shadow.isShadow = true
-	k.shadows = append(k.shadows, shadow)
-	return nil
-}
-
-// AddShadow adds a new shadow key to itself.
-func (k *Key) AddShadow(val string) error {
-	if !k.s.f.options.AllowShadows {
-		return errors.New("shadow key is not allowed")
-	}
-	return k.addShadow(val)
-}
-
-func (k *Key) addNestedValue(val string) error {
-	if k.isAutoIncrement || k.isBooleanType {
-		return errors.New("cannot add nested value to auto-increment or boolean key")
-	}
-
-	k.nestedValues = append(k.nestedValues, val)
-	return nil
-}
-
-func (k *Key) AddNestedValue(val string) error {
-	if !k.s.f.options.AllowNestedValues {
-		return errors.New("nested value is not allowed")
-	}
-	return k.addNestedValue(val)
-}
-
-// ValueMapper represents a mapping function for values, e.g. os.ExpandEnv
-type ValueMapper func(string) string
-
-// Name returns name of key.
-func (k *Key) Name() string {
-	return k.name
-}
-
-// Value returns raw value of key for performance purpose.
-func (k *Key) Value() string {
-	return k.value
-}
-
-// ValueWithShadows returns raw values of key and its shadows if any.
-func (k *Key) ValueWithShadows() []string {
-	if len(k.shadows) == 0 {
-		return []string{k.value}
-	}
-	vals := make([]string, len(k.shadows)+1)
-	vals[0] = k.value
-	for i := range k.shadows {
-		vals[i+1] = k.shadows[i].value
-	}
-	return vals
-}
-
-// NestedValues returns nested values stored in the key.
-// It is possible returned value is nil if no nested values stored in the key.
-func (k *Key) NestedValues() []string {
-	return k.nestedValues
-}
-
-// transformValue takes a raw value and transforms to its final string.
-func (k *Key) transformValue(val string) string {
-	if k.s.f.ValueMapper != nil {
-		val = k.s.f.ValueMapper(val)
-	}
-
-	// Fail-fast if no indicate char found for recursive value
-	if !strings.Contains(val, "%") {
-		return val
-	}
-	for i := 0; i < _DEPTH_VALUES; i++ {
-		vr := varPattern.FindString(val)
-		if len(vr) == 0 {
-			break
-		}
-
-		// Take off leading '%(' and trailing ')s'.
-		noption := strings.TrimLeft(vr, "%(")
-		noption = strings.TrimRight(noption, ")s")
-
-		// Search in the same section.
-		nk, err := k.s.GetKey(noption)
-		if err != nil || k == nk {
-			// Search again in default section.
-			nk, _ = k.s.f.Section("").GetKey(noption)
-		}
-
-		// Substitute by new value and take off leading '%(' and trailing ')s'.
-		val = strings.Replace(val, vr, nk.value, -1)
-	}
-	return val
-}
-
-// String returns string representation of value.
-func (k *Key) String() string {
-	return k.transformValue(k.value)
-}
-
-// Validate accepts a validate function which can
-// return modifed result as key value.
-func (k *Key) Validate(fn func(string) string) string {
-	return fn(k.String())
-}
-
-// parseBool returns the boolean value represented by the string.
-//
-// It accepts 1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On,
-// 0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off.
-// Any other value returns an error.
-func parseBool(str string) (value bool, err error) {
-	switch str {
-	case "1", "t", "T", "true", "TRUE", "True", "YES", "yes", "Yes", "y", "ON", "on", "On":
-		return true, nil
-	case "0", "f", "F", "false", "FALSE", "False", "NO", "no", "No", "n", "OFF", "off", "Off":
-		return false, nil
-	}
-	return false, fmt.Errorf("parsing \"%s\": invalid syntax", str)
-}
-
-// Bool returns bool type value.
-func (k *Key) Bool() (bool, error) {
-	return parseBool(k.String())
-}
-
-// Float64 returns float64 type value.
-func (k *Key) Float64() (float64, error) {
-	return strconv.ParseFloat(k.String(), 64)
-}
-
-// Int returns int type value.
-func (k *Key) Int() (int, error) {
-	return strconv.Atoi(k.String())
-}
-
-// Int64 returns int64 type value.
-func (k *Key) Int64() (int64, error) {
-	return strconv.ParseInt(k.String(), 10, 64)
-}
-
-// Uint returns uint type valued.
-func (k *Key) Uint() (uint, error) {
-	u, e := strconv.ParseUint(k.String(), 10, 64)
-	return uint(u), e
-}
-
-// Uint64 returns uint64 type value.
-func (k *Key) Uint64() (uint64, error) {
-	return strconv.ParseUint(k.String(), 10, 64)
-}
-
-// Duration returns time.Duration type value.
-func (k *Key) Duration() (time.Duration, error) {
-	return time.ParseDuration(k.String())
-}
-
-// TimeFormat parses with given format and returns time.Time type value.
-func (k *Key) TimeFormat(format string) (time.Time, error) {
-	return time.Parse(format, k.String())
-}
-
-// Time parses with RFC3339 format and returns time.Time type value.
-func (k *Key) Time() (time.Time, error) {
-	return k.TimeFormat(time.RFC3339)
-}
-
-// MustString returns default value if key value is empty.
-func (k *Key) MustString(defaultVal string) string {
-	val := k.String()
-	if len(val) == 0 {
-		k.value = defaultVal
-		return defaultVal
-	}
-	return val
-}
-
-// MustBool always returns value without error,
-// it returns false if error occurs.
-func (k *Key) MustBool(defaultVal ...bool) bool {
-	val, err := k.Bool()
-	if len(defaultVal) > 0 && err != nil {
-		k.value = strconv.FormatBool(defaultVal[0])
-		return defaultVal[0]
-	}
-	return val
-}
-
-// MustFloat64 always returns value without error,
-// it returns 0.0 if error occurs.
-func (k *Key) MustFloat64(defaultVal ...float64) float64 {
-	val, err := k.Float64()
-	if len(defaultVal) > 0 && err != nil {
-		k.value = strconv.FormatFloat(defaultVal[0], 'f', -1, 64)
-		return defaultVal[0]
-	}
-	return val
-}
-
-// MustInt always returns value without error,
-// it returns 0 if error occurs.
-func (k *Key) MustInt(defaultVal ...int) int {
-	val, err := k.Int()
-	if len(defaultVal) > 0 && err != nil {
-		k.value = strconv.FormatInt(int64(defaultVal[0]), 10)
-		return defaultVal[0]
-	}
-	return val
-}
-
-// MustInt64 always returns value without error,
-// it returns 0 if error occurs.
-func (k *Key) MustInt64(defaultVal ...int64) int64 {
-	val, err := k.Int64()
-	if len(defaultVal) > 0 && err != nil {
-		k.value = strconv.FormatInt(defaultVal[0], 10)
-		return defaultVal[0]
-	}
-	return val
-}
-
-// MustUint always returns value without error,
-// it returns 0 if error occurs.
-func (k *Key) MustUint(defaultVal ...uint) uint {
-	val, err := k.Uint()
-	if len(defaultVal) > 0 && err != nil {
-		k.value = strconv.FormatUint(uint64(defaultVal[0]), 10)
-		return defaultVal[0]
-	}
-	return val
-}
-
-// MustUint64 always returns value without error,
-// it returns 0 if error occurs.
-func (k *Key) MustUint64(defaultVal ...uint64) uint64 {
-	val, err := k.Uint64()
-	if len(defaultVal) > 0 && err != nil {
-		k.value = strconv.FormatUint(defaultVal[0], 10)
-		return defaultVal[0]
-	}
-	return val
-}
-
-// MustDuration always returns value without error,
-// it returns zero value if error occurs.
-func (k *Key) MustDuration(defaultVal ...time.Duration) time.Duration {
-	val, err := k.Duration()
-	if len(defaultVal) > 0 && err != nil {
-		k.value = defaultVal[0].String()
-		return defaultVal[0]
-	}
-	return val
-}
-
-// MustTimeFormat always parses with given format and returns value without error,
-// it returns zero value if error occurs.
-func (k *Key) MustTimeFormat(format string, defaultVal ...time.Time) time.Time {
-	val, err := k.TimeFormat(format)
-	if len(defaultVal) > 0 && err != nil {
-		k.value = defaultVal[0].Format(format)
-		return defaultVal[0]
-	}
-	return val
-}
-
-// MustTime always parses with RFC3339 format and returns value without error,
-// it returns zero value if error occurs.
-func (k *Key) MustTime(defaultVal ...time.Time) time.Time {
-	return k.MustTimeFormat(time.RFC3339, defaultVal...)
-}
-
-// In always returns value without error,
-// it returns default value if error occurs or doesn't fit into candidates.
-func (k *Key) In(defaultVal string, candidates []string) string {
-	val := k.String()
-	for _, cand := range candidates {
-		if val == cand {
-			return val
-		}
-	}
-	return defaultVal
-}
-
-// InFloat64 always returns value without error,
-// it returns default value if error occurs or doesn't fit into candidates.
-func (k *Key) InFloat64(defaultVal float64, candidates []float64) float64 {
-	val := k.MustFloat64()
-	for _, cand := range candidates {
-		if val == cand {
-			return val
-		}
-	}
-	return defaultVal
-}
-
-// InInt always returns value without error,
-// it returns default value if error occurs or doesn't fit into candidates.
-func (k *Key) InInt(defaultVal int, candidates []int) int {
-	val := k.MustInt()
-	for _, cand := range candidates {
-		if val == cand {
-			return val
-		}
-	}
-	return defaultVal
-}
-
-// InInt64 always returns value without error,
-// it returns default value if error occurs or doesn't fit into candidates.
-func (k *Key) InInt64(defaultVal int64, candidates []int64) int64 {
-	val := k.MustInt64()
-	for _, cand := range candidates {
-		if val == cand {
-			return val
-		}
-	}
-	return defaultVal
-}
-
-// InUint always returns value without error,
-// it returns default value if error occurs or doesn't fit into candidates.
-func (k *Key) InUint(defaultVal uint, candidates []uint) uint {
-	val := k.MustUint()
-	for _, cand := range candidates {
-		if val == cand {
-			return val
-		}
-	}
-	return defaultVal
-}
-
-// InUint64 always returns value without error,
-// it returns default value if error occurs or doesn't fit into candidates.
-func (k *Key) InUint64(defaultVal uint64, candidates []uint64) uint64 {
-	val := k.MustUint64()
-	for _, cand := range candidates {
-		if val == cand {
-			return val
-		}
-	}
-	return defaultVal
-}
-
-// InTimeFormat always parses with given format and returns value without error,
-// it returns default value if error occurs or doesn't fit into candidates.
-func (k *Key) InTimeFormat(format string, defaultVal time.Time, candidates []time.Time) time.Time {
-	val := k.MustTimeFormat(format)
-	for _, cand := range candidates {
-		if val == cand {
-			return val
-		}
-	}
-	return defaultVal
-}
-
-// InTime always parses with RFC3339 format and returns value without error,
-// it returns default value if error occurs or doesn't fit into candidates.
-func (k *Key) InTime(defaultVal time.Time, candidates []time.Time) time.Time {
-	return k.InTimeFormat(time.RFC3339, defaultVal, candidates)
-}
-
-// RangeFloat64 checks if value is in given range inclusively,
-// and returns default value if it's not.
-func (k *Key) RangeFloat64(defaultVal, min, max float64) float64 {
-	val := k.MustFloat64()
-	if val < min || val > max {
-		return defaultVal
-	}
-	return val
-}
-
-// RangeInt checks if value is in given range inclusively,
-// and returns default value if it's not.
-func (k *Key) RangeInt(defaultVal, min, max int) int {
-	val := k.MustInt()
-	if val < min || val > max {
-		return defaultVal
-	}
-	return val
-}
-
-// RangeInt64 checks if value is in given range inclusively,
-// and returns default value if it's not.
-func (k *Key) RangeInt64(defaultVal, min, max int64) int64 {
-	val := k.MustInt64()
-	if val < min || val > max {
-		return defaultVal
-	}
-	return val
-}
-
-// RangeTimeFormat checks if value with given format is in given range inclusively,
-// and returns default value if it's not.
-func (k *Key) RangeTimeFormat(format string, defaultVal, min, max time.Time) time.Time {
-	val := k.MustTimeFormat(format)
-	if val.Unix() < min.Unix() || val.Unix() > max.Unix() {
-		return defaultVal
-	}
-	return val
-}
-
-// RangeTime checks if value with RFC3339 format is in given range inclusively,
-// and returns default value if it's not.
-func (k *Key) RangeTime(defaultVal, min, max time.Time) time.Time {
-	return k.RangeTimeFormat(time.RFC3339, defaultVal, min, max)
-}
-
-// Strings returns list of string divided by given delimiter.
-func (k *Key) Strings(delim string) []string {
-	str := k.String()
-	if len(str) == 0 {
-		return []string{}
-	}
-
-	runes := []rune(str)
-	vals := make([]string, 0, 2)
-	var buf bytes.Buffer
-	escape := false
-	idx := 0
-	for {
-		if escape {
-			escape = false
-			if runes[idx] != '\\' && !strings.HasPrefix(string(runes[idx:]), delim) {
-				buf.WriteRune('\\')
-			}
-			buf.WriteRune(runes[idx])
-		} else {
-			if runes[idx] == '\\' {
-				escape = true
-			} else if strings.HasPrefix(string(runes[idx:]), delim) {
-				idx += len(delim) - 1
-				vals = append(vals, strings.TrimSpace(buf.String()))
-				buf.Reset()
-			} else {
-				buf.WriteRune(runes[idx])
-			}
-		}
-		idx += 1
-		if idx == len(runes) {
-			break
-		}
-	}
-
-	if buf.Len() > 0 {
-		vals = append(vals, strings.TrimSpace(buf.String()))
-	}
-
-	return vals
-}
-
-// StringsWithShadows returns list of string divided by given delimiter.
-// Shadows will also be appended if any.
-func (k *Key) StringsWithShadows(delim string) []string {
-	vals := k.ValueWithShadows()
-	results := make([]string, 0, len(vals)*2)
-	for i := range vals {
-		if len(vals) == 0 {
-			continue
-		}
-
-		results = append(results, strings.Split(vals[i], delim)...)
-	}
-
-	for i := range results {
-		results[i] = k.transformValue(strings.TrimSpace(results[i]))
-	}
-	return results
-}
-
-// Float64s returns list of float64 divided by given delimiter. Any invalid input will be treated as zero value.
-func (k *Key) Float64s(delim string) []float64 {
-	vals, _ := k.parseFloat64s(k.Strings(delim), true, false)
-	return vals
-}
-
-// Ints returns list of int divided by given delimiter. Any invalid input will be treated as zero value.
-func (k *Key) Ints(delim string) []int {
-	vals, _ := k.parseInts(k.Strings(delim), true, false)
-	return vals
-}
-
-// Int64s returns list of int64 divided by given delimiter. Any invalid input will be treated as zero value.
-func (k *Key) Int64s(delim string) []int64 {
-	vals, _ := k.parseInt64s(k.Strings(delim), true, false)
-	return vals
-}
-
-// Uints returns list of uint divided by given delimiter. Any invalid input will be treated as zero value.
-func (k *Key) Uints(delim string) []uint {
-	vals, _ := k.parseUints(k.Strings(delim), true, false)
-	return vals
-}
-
-// Uint64s returns list of uint64 divided by given delimiter. Any invalid input will be treated as zero value.
-func (k *Key) Uint64s(delim string) []uint64 {
-	vals, _ := k.parseUint64s(k.Strings(delim), true, false)
-	return vals
-}
-
-// TimesFormat parses with given format and returns list of time.Time divided by given delimiter.
-// Any invalid input will be treated as zero value (0001-01-01 00:00:00 +0000 UTC).
-func (k *Key) TimesFormat(format, delim string) []time.Time {
-	vals, _ := k.parseTimesFormat(format, k.Strings(delim), true, false)
-	return vals
-}
-
-// Times parses with RFC3339 format and returns list of time.Time divided by given delimiter.
-// Any invalid input will be treated as zero value (0001-01-01 00:00:00 +0000 UTC).
-func (k *Key) Times(delim string) []time.Time {
-	return k.TimesFormat(time.RFC3339, delim)
-}
-
-// ValidFloat64s returns list of float64 divided by given delimiter. If some value is not float, then
-// it will not be included to result list.
-func (k *Key) ValidFloat64s(delim string) []float64 {
-	vals, _ := k.parseFloat64s(k.Strings(delim), false, false)
-	return vals
-}
-
-// ValidInts returns list of int divided by given delimiter. If some value is not integer, then it will
-// not be included to result list.
-func (k *Key) ValidInts(delim string) []int {
-	vals, _ := k.parseInts(k.Strings(delim), false, false)
-	return vals
-}
-
-// ValidInt64s returns list of int64 divided by given delimiter. If some value is not 64-bit integer,
-// then it will not be included to result list.
-func (k *Key) ValidInt64s(delim string) []int64 {
-	vals, _ := k.parseInt64s(k.Strings(delim), false, false)
-	return vals
-}
-
-// ValidUints returns list of uint divided by given delimiter. If some value is not unsigned integer,
-// then it will not be included to result list.
-func (k *Key) ValidUints(delim string) []uint {
-	vals, _ := k.parseUints(k.Strings(delim), false, false)
-	return vals
-}
-
-// ValidUint64s returns list of uint64 divided by given delimiter. If some value is not 64-bit unsigned
-// integer, then it will not be included to result list.
-func (k *Key) ValidUint64s(delim string) []uint64 {
-	vals, _ := k.parseUint64s(k.Strings(delim), false, false)
-	return vals
-}
-
-// ValidTimesFormat parses with given format and returns list of time.Time divided by given delimiter.
-func (k *Key) ValidTimesFormat(format, delim string) []time.Time {
-	vals, _ := k.parseTimesFormat(format, k.Strings(delim), false, false)
-	return vals
-}
-
-// ValidTimes parses with RFC3339 format and returns list of time.Time divided by given delimiter.
-func (k *Key) ValidTimes(delim string) []time.Time {
-	return k.ValidTimesFormat(time.RFC3339, delim)
-}
-
-// StrictFloat64s returns list of float64 divided by given delimiter or error on first invalid input.
-func (k *Key) StrictFloat64s(delim string) ([]float64, error) {
-	return k.parseFloat64s(k.Strings(delim), false, true)
-}
-
-// StrictInts returns list of int divided by given delimiter or error on first invalid input.
-func (k *Key) StrictInts(delim string) ([]int, error) {
-	return k.parseInts(k.Strings(delim), false, true)
-}
-
-// StrictInt64s returns list of int64 divided by given delimiter or error on first invalid input.
-func (k *Key) StrictInt64s(delim string) ([]int64, error) {
-	return k.parseInt64s(k.Strings(delim), false, true)
-}
-
-// StrictUints returns list of uint divided by given delimiter or error on first invalid input.
-func (k *Key) StrictUints(delim string) ([]uint, error) {
-	return k.parseUints(k.Strings(delim), false, true)
-}
-
-// StrictUint64s returns list of uint64 divided by given delimiter or error on first invalid input.
-func (k *Key) StrictUint64s(delim string) ([]uint64, error) {
-	return k.parseUint64s(k.Strings(delim), false, true)
-}
-
-// StrictTimesFormat parses with given format and returns list of time.Time divided by given delimiter
-// or error on first invalid input.
-func (k *Key) StrictTimesFormat(format, delim string) ([]time.Time, error) {
-	return k.parseTimesFormat(format, k.Strings(delim), false, true)
-}
-
-// StrictTimes parses with RFC3339 format and returns list of time.Time divided by given delimiter
-// or error on first invalid input.
-func (k *Key) StrictTimes(delim string) ([]time.Time, error) {
-	return k.StrictTimesFormat(time.RFC3339, delim)
-}
-
-// parseFloat64s transforms strings to float64s.
-func (k *Key) parseFloat64s(strs []string, addInvalid, returnOnInvalid bool) ([]float64, error) {
-	vals := make([]float64, 0, len(strs))
-	for _, str := range strs {
-		val, err := strconv.ParseFloat(str, 64)
-		if err != nil && returnOnInvalid {
-			return nil, err
-		}
-		if err == nil || addInvalid {
-			vals = append(vals, val)
-		}
-	}
-	return vals, nil
-}
-
-// parseInts transforms strings to ints.
-func (k *Key) parseInts(strs []string, addInvalid, returnOnInvalid bool) ([]int, error) {
-	vals := make([]int, 0, len(strs))
-	for _, str := range strs {
-		val, err := strconv.Atoi(str)
-		if err != nil && returnOnInvalid {
-			return nil, err
-		}
-		if err == nil || addInvalid {
-			vals = append(vals, val)
-		}
-	}
-	return vals, nil
-}
-
-// parseInt64s transforms strings to int64s.
-func (k *Key) parseInt64s(strs []string, addInvalid, returnOnInvalid bool) ([]int64, error) {
-	vals := make([]int64, 0, len(strs))
-	for _, str := range strs {
-		val, err := strconv.ParseInt(str, 10, 64)
-		if err != nil && returnOnInvalid {
-			return nil, err
-		}
-		if err == nil || addInvalid {
-			vals = append(vals, val)
-		}
-	}
-	return vals, nil
-}
-
-// parseUints transforms strings to uints.
-func (k *Key) parseUints(strs []string, addInvalid, returnOnInvalid bool) ([]uint, error) {
-	vals := make([]uint, 0, len(strs))
-	for _, str := range strs {
-		val, err := strconv.ParseUint(str, 10, 0)
-		if err != nil && returnOnInvalid {
-			return nil, err
-		}
-		if err == nil || addInvalid {
-			vals = append(vals, uint(val))
-		}
-	}
-	return vals, nil
-}
-
-// parseUint64s transforms strings to uint64s.
-func (k *Key) parseUint64s(strs []string, addInvalid, returnOnInvalid bool) ([]uint64, error) {
-	vals := make([]uint64, 0, len(strs))
-	for _, str := range strs {
-		val, err := strconv.ParseUint(str, 10, 64)
-		if err != nil && returnOnInvalid {
-			return nil, err
-		}
-		if err == nil || addInvalid {
-			vals = append(vals, val)
-		}
-	}
-	return vals, nil
-}
-
-// parseTimesFormat transforms strings to times in given format.
-func (k *Key) parseTimesFormat(format string, strs []string, addInvalid, returnOnInvalid bool) ([]time.Time, error) {
-	vals := make([]time.Time, 0, len(strs))
-	for _, str := range strs {
-		val, err := time.Parse(format, str)
-		if err != nil && returnOnInvalid {
-			return nil, err
-		}
-		if err == nil || addInvalid {
-			vals = append(vals, val)
-		}
-	}
-	return vals, nil
-}
-
-// SetValue changes key value.
-func (k *Key) SetValue(v string) {
-	if k.s.f.BlockMode {
-		k.s.f.lock.Lock()
-		defer k.s.f.lock.Unlock()
-	}
-
-	k.value = v
-	k.s.keysHash[k.name] = v
-}
diff --git a/vendor/github.com/go-ini/ini/parser.go b/vendor/github.com/go-ini/ini/parser.go
deleted file mode 100644
index db3af8f..0000000
--- a/vendor/github.com/go-ini/ini/parser.go
+++ /dev/null
@@ -1,401 +0,0 @@
-// Copyright 2015 Unknwon
-//
-// Licensed under the Apache License, Version 2.0 (the "License"): you may
-// not use this file except in compliance with the License. You may obtain
-// a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations
-// under the License.
-
-package ini
-
-import (
-	"bufio"
-	"bytes"
-	"fmt"
-	"io"
-	"strconv"
-	"strings"
-	"unicode"
-)
-
-type tokenType int
-
-const (
-	_TOKEN_INVALID tokenType = iota
-	_TOKEN_COMMENT
-	_TOKEN_SECTION
-	_TOKEN_KEY
-)
-
-type parser struct {
-	buf     *bufio.Reader
-	isEOF   bool
-	count   int
-	comment *bytes.Buffer
-}
-
-func newParser(r io.Reader) *parser {
-	return &parser{
-		buf:     bufio.NewReader(r),
-		count:   1,
-		comment: &bytes.Buffer{},
-	}
-}
-
-// BOM handles header of UTF-8, UTF-16 LE and UTF-16 BE's BOM format.
-// http://en.wikipedia.org/wiki/Byte_order_mark#Representations_of_byte_order_marks_by_encoding
-func (p *parser) BOM() error {
-	mask, err := p.buf.Peek(2)
-	if err != nil && err != io.EOF {
-		return err
-	} else if len(mask) < 2 {
-		return nil
-	}
-
-	switch {
-	case mask[0] == 254 && mask[1] == 255:
-		fallthrough
-	case mask[0] == 255 && mask[1] == 254:
-		p.buf.Read(mask)
-	case mask[0] == 239 && mask[1] == 187:
-		mask, err := p.buf.Peek(3)
-		if err != nil && err != io.EOF {
-			return err
-		} else if len(mask) < 3 {
-			return nil
-		}
-		if mask[2] == 191 {
-			p.buf.Read(mask)
-		}
-	}
-	return nil
-}
-
-func (p *parser) readUntil(delim byte) ([]byte, error) {
-	data, err := p.buf.ReadBytes(delim)
-	if err != nil {
-		if err == io.EOF {
-			p.isEOF = true
-		} else {
-			return nil, err
-		}
-	}
-	return data, nil
-}
-
-func cleanComment(in []byte) ([]byte, bool) {
-	i := bytes.IndexAny(in, "#;")
-	if i == -1 {
-		return nil, false
-	}
-	return in[i:], true
-}
-
-func readKeyName(in []byte) (string, int, error) {
-	line := string(in)
-
-	// Check if key name surrounded by quotes.
-	var keyQuote string
-	if line[0] == '"' {
-		if len(line) > 6 && string(line[0:3]) == `"""` {
-			keyQuote = `"""`
-		} else {
-			keyQuote = `"`
-		}
-	} else if line[0] == '`' {
-		keyQuote = "`"
-	}
-
-	// Get out key name
-	endIdx := -1
-	if len(keyQuote) > 0 {
-		startIdx := len(keyQuote)
-		// FIXME: fail case -> """"""name"""=value
-		pos := strings.Index(line[startIdx:], keyQuote)
-		if pos == -1 {
-			return "", -1, fmt.Errorf("missing closing key quote: %s", line)
-		}
-		pos += startIdx
-
-		// Find key-value delimiter
-		i := strings.IndexAny(line[pos+startIdx:], "=:")
-		if i < 0 {
-			return "", -1, ErrDelimiterNotFound{line}
-		}
-		endIdx = pos + i
-		return strings.TrimSpace(line[startIdx:pos]), endIdx + startIdx + 1, nil
-	}
-
-	endIdx = strings.IndexAny(line, "=:")
-	if endIdx < 0 {
-		return "", -1, ErrDelimiterNotFound{line}
-	}
-	return strings.TrimSpace(line[0:endIdx]), endIdx + 1, nil
-}
-
-func (p *parser) readMultilines(line, val, valQuote string) (string, error) {
-	for {
-		data, err := p.readUntil('\n')
-		if err != nil {
-			return "", err
-		}
-		next := string(data)
-
-		pos := strings.LastIndex(next, valQuote)
-		if pos > -1 {
-			val += next[:pos]
-
-			comment, has := cleanComment([]byte(next[pos:]))
-			if has {
-				p.comment.Write(bytes.TrimSpace(comment))
-			}
-			break
-		}
-		val += next
-		if p.isEOF {
-			return "", fmt.Errorf("missing closing key quote from '%s' to '%s'", line, next)
-		}
-	}
-	return val, nil
-}
-
-func (p *parser) readContinuationLines(val string) (string, error) {
-	for {
-		data, err := p.readUntil('\n')
-		if err != nil {
-			return "", err
-		}
-		next := strings.TrimSpace(string(data))
-
-		if len(next) == 0 {
-			break
-		}
-		val += next
-		if val[len(val)-1] != '\\' {
-			break
-		}
-		val = val[:len(val)-1]
-	}
-	return val, nil
-}
-
-// hasSurroundedQuote check if and only if the first and last characters
-// are quotes \" or \'.
-// It returns false if any other parts also contain same kind of quotes.
-func hasSurroundedQuote(in string, quote byte) bool {
-	return len(in) >= 2 && in[0] == quote && in[len(in)-1] == quote &&
-		strings.IndexByte(in[1:], quote) == len(in)-2
-}
-
-func (p *parser) readValue(in []byte,
-	ignoreContinuation, ignoreInlineComment, unescapeValueDoubleQuotes, unescapeValueCommentSymbols bool) (string, error) {
-
-	line := strings.TrimLeftFunc(string(in), unicode.IsSpace)
-	if len(line) == 0 {
-		return "", nil
-	}
-
-	var valQuote string
-	if len(line) > 3 && string(line[0:3]) == `"""` {
-		valQuote = `"""`
-	} else if line[0] == '`' {
-		valQuote = "`"
-	} else if unescapeValueDoubleQuotes && line[0] == '"' {
-		valQuote = `"`
-	}
-
-	if len(valQuote) > 0 {
-		startIdx := len(valQuote)
-		pos := strings.LastIndex(line[startIdx:], valQuote)
-		// Check for multi-line value
-		if pos == -1 {
-			return p.readMultilines(line, line[startIdx:], valQuote)
-		}
-
-		if unescapeValueDoubleQuotes && valQuote == `"` {
-			return strings.Replace(line[startIdx:pos+startIdx], `\"`, `"`, -1), nil
-		}
-		return line[startIdx : pos+startIdx], nil
-	}
-
-	// Won't be able to reach here if value only contains whitespace
-	line = strings.TrimSpace(line)
-
-	// Check continuation lines when desired
-	if !ignoreContinuation && line[len(line)-1] == '\\' {
-		return p.readContinuationLines(line[:len(line)-1])
-	}
-
-	// Check if ignore inline comment
-	if !ignoreInlineComment {
-		i := strings.IndexAny(line, "#;")
-		if i > -1 {
-			p.comment.WriteString(line[i:])
-			line = strings.TrimSpace(line[:i])
-		}
-	}
-
-	// Trim single and double quotes
-	if hasSurroundedQuote(line, '\'') ||
-		hasSurroundedQuote(line, '"') {
-		line = line[1 : len(line)-1]
-	} else if len(valQuote) == 0 && unescapeValueCommentSymbols {
-		if strings.Contains(line, `\;`) {
-			line = strings.Replace(line, `\;`, ";", -1)
-		}
-		if strings.Contains(line, `\#`) {
-			line = strings.Replace(line, `\#`, "#", -1)
-		}
-	}
-	return line, nil
-}
-
-// parse parses data through an io.Reader.
-func (f *File) parse(reader io.Reader) (err error) {
-	p := newParser(reader)
-	if err = p.BOM(); err != nil {
-		return fmt.Errorf("BOM: %v", err)
-	}
-
-	// Ignore error because default section name is never empty string.
-	name := DEFAULT_SECTION
-	if f.options.Insensitive {
-		name = strings.ToLower(DEFAULT_SECTION)
-	}
-	section, _ := f.NewSection(name)
-
-	// This "last" is not strictly equivalent to "previous one" if current key is not the first nested key
-	var isLastValueEmpty bool
-	var lastRegularKey *Key
-
-	var line []byte
-	var inUnparseableSection bool
-	for !p.isEOF {
-		line, err = p.readUntil('\n')
-		if err != nil {
-			return err
-		}
-
-		if f.options.AllowNestedValues &&
-			isLastValueEmpty && len(line) > 0 {
-			if line[0] == ' ' || line[0] == '\t' {
-				lastRegularKey.addNestedValue(string(bytes.TrimSpace(line)))
-				continue
-			}
-		}
-
-		line = bytes.TrimLeftFunc(line, unicode.IsSpace)
-		if len(line) == 0 {
-			continue
-		}
-
-		// Comments
-		if line[0] == '#' || line[0] == ';' {
-			// Note: we do not care ending line break,
-			// it is needed for adding second line,
-			// so just clean it once at the end when set to value.
-			p.comment.Write(line)
-			continue
-		}
-
-		// Section
-		if line[0] == '[' {
-			// Read to the next ']' (TODO: support quoted strings)
-			// TODO(unknwon): use LastIndexByte when stop supporting Go1.4
-			closeIdx := bytes.LastIndex(line, []byte("]"))
-			if closeIdx == -1 {
-				return fmt.Errorf("unclosed section: %s", line)
-			}
-
-			name := string(line[1:closeIdx])
-			section, err = f.NewSection(name)
-			if err != nil {
-				return err
-			}
-
-			comment, has := cleanComment(line[closeIdx+1:])
-			if has {
-				p.comment.Write(comment)
-			}
-
-			section.Comment = strings.TrimSpace(p.comment.String())
-
-			// Reset aotu-counter and comments
-			p.comment.Reset()
-			p.count = 1
-
-			inUnparseableSection = false
-			for i := range f.options.UnparseableSections {
-				if f.options.UnparseableSections[i] == name ||
-					(f.options.Insensitive && strings.ToLower(f.options.UnparseableSections[i]) == strings.ToLower(name)) {
-					inUnparseableSection = true
-					continue
-				}
-			}
-			continue
-		}
-
-		if inUnparseableSection {
-			section.isRawSection = true
-			section.rawBody += string(line)
-			continue
-		}
-
-		kname, offset, err := readKeyName(line)
-		if err != nil {
-			// Treat as boolean key when desired, and whole line is key name.
-			if IsErrDelimiterNotFound(err) && f.options.AllowBooleanKeys {
-				kname, err := p.readValue(line,
-					f.options.IgnoreContinuation,
-					f.options.IgnoreInlineComment,
-					f.options.UnescapeValueDoubleQuotes,
-					f.options.UnescapeValueCommentSymbols)
-				if err != nil {
-					return err
-				}
-				key, err := section.NewBooleanKey(kname)
-				if err != nil {
-					return err
-				}
-				key.Comment = strings.TrimSpace(p.comment.String())
-				p.comment.Reset()
-				continue
-			}
-			return err
-		}
-
-		// Auto increment.
-		isAutoIncr := false
-		if kname == "-" {
-			isAutoIncr = true
-			kname = "#" + strconv.Itoa(p.count)
-			p.count++
-		}
-
-		value, err := p.readValue(line[offset:],
-			f.options.IgnoreContinuation,
-			f.options.IgnoreInlineComment,
-			f.options.UnescapeValueDoubleQuotes,
-			f.options.UnescapeValueCommentSymbols)
-		if err != nil {
-			return err
-		}
-		isLastValueEmpty = len(value) == 0
-
-		key, err := section.NewKey(kname, value)
-		if err != nil {
-			return err
-		}
-		key.isAutoIncrement = isAutoIncr
-		key.Comment = strings.TrimSpace(p.comment.String())
-		p.comment.Reset()
-		lastRegularKey = key
-	}
-	return nil
-}
diff --git a/vendor/github.com/go-ini/ini/section.go b/vendor/github.com/go-ini/ini/section.go
deleted file mode 100644
index d8a4026..0000000
--- a/vendor/github.com/go-ini/ini/section.go
+++ /dev/null
@@ -1,257 +0,0 @@
-// Copyright 2014 Unknwon
-//
-// Licensed under the Apache License, Version 2.0 (the "License"): you may
-// not use this file except in compliance with the License. You may obtain
-// a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations
-// under the License.
-
-package ini
-
-import (
-	"errors"
-	"fmt"
-	"strings"
-)
-
-// Section represents a config section.
-type Section struct {
-	f        *File
-	Comment  string
-	name     string
-	keys     map[string]*Key
-	keyList  []string
-	keysHash map[string]string
-
-	isRawSection bool
-	rawBody      string
-}
-
-func newSection(f *File, name string) *Section {
-	return &Section{
-		f:        f,
-		name:     name,
-		keys:     make(map[string]*Key),
-		keyList:  make([]string, 0, 10),
-		keysHash: make(map[string]string),
-	}
-}
-
-// Name returns name of Section.
-func (s *Section) Name() string {
-	return s.name
-}
-
-// Body returns rawBody of Section if the section was marked as unparseable.
-// It still follows the other rules of the INI format surrounding leading/trailing whitespace.
-func (s *Section) Body() string {
-	return strings.TrimSpace(s.rawBody)
-}
-
-// SetBody updates body content only if section is raw.
-func (s *Section) SetBody(body string) {
-	if !s.isRawSection {
-		return
-	}
-	s.rawBody = body
-}
-
-// NewKey creates a new key to given section.
-func (s *Section) NewKey(name, val string) (*Key, error) {
-	if len(name) == 0 {
-		return nil, errors.New("error creating new key: empty key name")
-	} else if s.f.options.Insensitive {
-		name = strings.ToLower(name)
-	}
-
-	if s.f.BlockMode {
-		s.f.lock.Lock()
-		defer s.f.lock.Unlock()
-	}
-
-	if inSlice(name, s.keyList) {
-		if s.f.options.AllowShadows {
-			if err := s.keys[name].addShadow(val); err != nil {
-				return nil, err
-			}
-		} else {
-			s.keys[name].value = val
-		}
-		return s.keys[name], nil
-	}
-
-	s.keyList = append(s.keyList, name)
-	s.keys[name] = newKey(s, name, val)
-	s.keysHash[name] = val
-	return s.keys[name], nil
-}
-
-// NewBooleanKey creates a new boolean type key to given section.
-func (s *Section) NewBooleanKey(name string) (*Key, error) {
-	key, err := s.NewKey(name, "true")
-	if err != nil {
-		return nil, err
-	}
-
-	key.isBooleanType = true
-	return key, nil
-}
-
-// GetKey returns key in section by given name.
-func (s *Section) GetKey(name string) (*Key, error) {
-	// FIXME: change to section level lock?
-	if s.f.BlockMode {
-		s.f.lock.RLock()
-	}
-	if s.f.options.Insensitive {
-		name = strings.ToLower(name)
-	}
-	key := s.keys[name]
-	if s.f.BlockMode {
-		s.f.lock.RUnlock()
-	}
-
-	if key == nil {
-		// Check if it is a child-section.
-		sname := s.name
-		for {
-			if i := strings.LastIndex(sname, "."); i > -1 {
-				sname = sname[:i]
-				sec, err := s.f.GetSection(sname)
-				if err != nil {
-					continue
-				}
-				return sec.GetKey(name)
-			} else {
-				break
-			}
-		}
-		return nil, fmt.Errorf("error when getting key of section '%s': key '%s' not exists", s.name, name)
-	}
-	return key, nil
-}
-
-// HasKey returns true if section contains a key with given name.
-func (s *Section) HasKey(name string) bool {
-	key, _ := s.GetKey(name)
-	return key != nil
-}
-
-// Haskey is a backwards-compatible name for HasKey.
-// TODO: delete me in v2
-func (s *Section) Haskey(name string) bool {
-	return s.HasKey(name)
-}
-
-// HasValue returns true if section contains given raw value.
-func (s *Section) HasValue(value string) bool {
-	if s.f.BlockMode {
-		s.f.lock.RLock()
-		defer s.f.lock.RUnlock()
-	}
-
-	for _, k := range s.keys {
-		if value == k.value {
-			return true
-		}
-	}
-	return false
-}
-
-// Key assumes named Key exists in section and returns a zero-value when not.
-func (s *Section) Key(name string) *Key {
-	key, err := s.GetKey(name)
-	if err != nil {
-		// It's OK here because the only possible error is empty key name,
-		// but if it's empty, this piece of code won't be executed.
-		key, _ = s.NewKey(name, "")
-		return key
-	}
-	return key
-}
-
-// Keys returns list of keys of section.
-func (s *Section) Keys() []*Key {
-	keys := make([]*Key, len(s.keyList))
-	for i := range s.keyList {
-		keys[i] = s.Key(s.keyList[i])
-	}
-	return keys
-}
-
-// ParentKeys returns list of keys of parent section.
-func (s *Section) ParentKeys() []*Key {
-	var parentKeys []*Key
-	sname := s.name
-	for {
-		if i := strings.LastIndex(sname, "."); i > -1 {
-			sname = sname[:i]
-			sec, err := s.f.GetSection(sname)
-			if err != nil {
-				continue
-			}
-			parentKeys = append(parentKeys, sec.Keys()...)
-		} else {
-			break
-		}
-
-	}
-	return parentKeys
-}
-
-// KeyStrings returns list of key names of section.
-func (s *Section) KeyStrings() []string {
-	list := make([]string, len(s.keyList))
-	copy(list, s.keyList)
-	return list
-}
-
-// KeysHash returns keys hash consisting of names and values.
-func (s *Section) KeysHash() map[string]string {
-	if s.f.BlockMode {
-		s.f.lock.RLock()
-		defer s.f.lock.RUnlock()
-	}
-
-	hash := map[string]string{}
-	for key, value := range s.keysHash {
-		hash[key] = value
-	}
-	return hash
-}
-
-// DeleteKey deletes a key from section.
-func (s *Section) DeleteKey(name string) {
-	if s.f.BlockMode {
-		s.f.lock.Lock()
-		defer s.f.lock.Unlock()
-	}
-
-	for i, k := range s.keyList {
-		if k == name {
-			s.keyList = append(s.keyList[:i], s.keyList[i+1:]...)
-			delete(s.keys, name)
-			return
-		}
-	}
-}
-
-// ChildSections returns a list of child sections of current section.
-// For example, "[parent.child1]" and "[parent.child12]" are child sections
-// of section "[parent]".
-func (s *Section) ChildSections() []*Section {
-	prefix := s.name + "."
-	children := make([]*Section, 0, 3)
-	for _, name := range s.f.sectionList {
-		if strings.HasPrefix(name, prefix) {
-			children = append(children, s.f.sections[name])
-		}
-	}
-	return children
-}
diff --git a/vendor/github.com/go-ini/ini/struct.go b/vendor/github.com/go-ini/ini/struct.go
deleted file mode 100644
index 9719dc6..0000000
--- a/vendor/github.com/go-ini/ini/struct.go
+++ /dev/null
@@ -1,512 +0,0 @@
-// Copyright 2014 Unknwon
-//
-// Licensed under the Apache License, Version 2.0 (the "License"): you may
-// not use this file except in compliance with the License. You may obtain
-// a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations
-// under the License.
-
-package ini
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"reflect"
-	"strings"
-	"time"
-	"unicode"
-)
-
-// NameMapper represents a ini tag name mapper.
-type NameMapper func(string) string
-
-// Built-in name getters.
-var (
-	// AllCapsUnderscore converts to format ALL_CAPS_UNDERSCORE.
-	AllCapsUnderscore NameMapper = func(raw string) string {
-		newstr := make([]rune, 0, len(raw))
-		for i, chr := range raw {
-			if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
-				if i > 0 {
-					newstr = append(newstr, '_')
-				}
-			}
-			newstr = append(newstr, unicode.ToUpper(chr))
-		}
-		return string(newstr)
-	}
-	// TitleUnderscore converts to format title_underscore.
-	TitleUnderscore NameMapper = func(raw string) string {
-		newstr := make([]rune, 0, len(raw))
-		for i, chr := range raw {
-			if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
-				if i > 0 {
-					newstr = append(newstr, '_')
-				}
-				chr -= ('A' - 'a')
-			}
-			newstr = append(newstr, chr)
-		}
-		return string(newstr)
-	}
-)
-
-func (s *Section) parseFieldName(raw, actual string) string {
-	if len(actual) > 0 {
-		return actual
-	}
-	if s.f.NameMapper != nil {
-		return s.f.NameMapper(raw)
-	}
-	return raw
-}
-
-func parseDelim(actual string) string {
-	if len(actual) > 0 {
-		return actual
-	}
-	return ","
-}
-
-var reflectTime = reflect.TypeOf(time.Now()).Kind()
-
-// setSliceWithProperType sets proper values to slice based on its type.
-func setSliceWithProperType(key *Key, field reflect.Value, delim string, allowShadow, isStrict bool) error {
-	var strs []string
-	if allowShadow {
-		strs = key.StringsWithShadows(delim)
-	} else {
-		strs = key.Strings(delim)
-	}
-
-	numVals := len(strs)
-	if numVals == 0 {
-		return nil
-	}
-
-	var vals interface{}
-	var err error
-
-	sliceOf := field.Type().Elem().Kind()
-	switch sliceOf {
-	case reflect.String:
-		vals = strs
-	case reflect.Int:
-		vals, err = key.parseInts(strs, true, false)
-	case reflect.Int64:
-		vals, err = key.parseInt64s(strs, true, false)
-	case reflect.Uint:
-		vals, err = key.parseUints(strs, true, false)
-	case reflect.Uint64:
-		vals, err = key.parseUint64s(strs, true, false)
-	case reflect.Float64:
-		vals, err = key.parseFloat64s(strs, true, false)
-	case reflectTime:
-		vals, err = key.parseTimesFormat(time.RFC3339, strs, true, false)
-	default:
-		return fmt.Errorf("unsupported type '[]%s'", sliceOf)
-	}
-	if err != nil && isStrict {
-		return err
-	}
-
-	slice := reflect.MakeSlice(field.Type(), numVals, numVals)
-	for i := 0; i < numVals; i++ {
-		switch sliceOf {
-		case reflect.String:
-			slice.Index(i).Set(reflect.ValueOf(vals.([]string)[i]))
-		case reflect.Int:
-			slice.Index(i).Set(reflect.ValueOf(vals.([]int)[i]))
-		case reflect.Int64:
-			slice.Index(i).Set(reflect.ValueOf(vals.([]int64)[i]))
-		case reflect.Uint:
-			slice.Index(i).Set(reflect.ValueOf(vals.([]uint)[i]))
-		case reflect.Uint64:
-			slice.Index(i).Set(reflect.ValueOf(vals.([]uint64)[i]))
-		case reflect.Float64:
-			slice.Index(i).Set(reflect.ValueOf(vals.([]float64)[i]))
-		case reflectTime:
-			slice.Index(i).Set(reflect.ValueOf(vals.([]time.Time)[i]))
-		}
-	}
-	field.Set(slice)
-	return nil
-}
-
-func wrapStrictError(err error, isStrict bool) error {
-	if isStrict {
-		return err
-	}
-	return nil
-}
-
-// setWithProperType sets proper value to field based on its type,
-// but it does not return error for failing parsing,
-// because we want to use default value that is already assigned to strcut.
-func setWithProperType(t reflect.Type, key *Key, field reflect.Value, delim string, allowShadow, isStrict bool) error {
-	switch t.Kind() {
-	case reflect.String:
-		if len(key.String()) == 0 {
-			return nil
-		}
-		field.SetString(key.String())
-	case reflect.Bool:
-		boolVal, err := key.Bool()
-		if err != nil {
-			return wrapStrictError(err, isStrict)
-		}
-		field.SetBool(boolVal)
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		durationVal, err := key.Duration()
-		// Skip zero value
-		if err == nil && int64(durationVal) > 0 {
-			field.Set(reflect.ValueOf(durationVal))
-			return nil
-		}
-
-		intVal, err := key.Int64()
-		if err != nil {
-			return wrapStrictError(err, isStrict)
-		}
-		field.SetInt(intVal)
-	//	byte is an alias for uint8, so supporting uint8 breaks support for byte
-	case reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-		durationVal, err := key.Duration()
-		// Skip zero value
-		if err == nil && int(durationVal) > 0 {
-			field.Set(reflect.ValueOf(durationVal))
-			return nil
-		}
-
-		uintVal, err := key.Uint64()
-		if err != nil {
-			return wrapStrictError(err, isStrict)
-		}
-		field.SetUint(uintVal)
-
-	case reflect.Float32, reflect.Float64:
-		floatVal, err := key.Float64()
-		if err != nil {
-			return wrapStrictError(err, isStrict)
-		}
-		field.SetFloat(floatVal)
-	case reflectTime:
-		timeVal, err := key.Time()
-		if err != nil {
-			return wrapStrictError(err, isStrict)
-		}
-		field.Set(reflect.ValueOf(timeVal))
-	case reflect.Slice:
-		return setSliceWithProperType(key, field, delim, allowShadow, isStrict)
-	default:
-		return fmt.Errorf("unsupported type '%s'", t)
-	}
-	return nil
-}
-
-func parseTagOptions(tag string) (rawName string, omitEmpty bool, allowShadow bool) {
-	opts := strings.SplitN(tag, ",", 3)
-	rawName = opts[0]
-	if len(opts) > 1 {
-		omitEmpty = opts[1] == "omitempty"
-	}
-	if len(opts) > 2 {
-		allowShadow = opts[2] == "allowshadow"
-	}
-	return rawName, omitEmpty, allowShadow
-}
-
-func (s *Section) mapTo(val reflect.Value, isStrict bool) error {
-	if val.Kind() == reflect.Ptr {
-		val = val.Elem()
-	}
-	typ := val.Type()
-
-	for i := 0; i < typ.NumField(); i++ {
-		field := val.Field(i)
-		tpField := typ.Field(i)
-
-		tag := tpField.Tag.Get("ini")
-		if tag == "-" {
-			continue
-		}
-
-		rawName, _, allowShadow := parseTagOptions(tag)
-		fieldName := s.parseFieldName(tpField.Name, rawName)
-		if len(fieldName) == 0 || !field.CanSet() {
-			continue
-		}
-
-		isAnonymous := tpField.Type.Kind() == reflect.Ptr && tpField.Anonymous
-		isStruct := tpField.Type.Kind() == reflect.Struct
-		if isAnonymous {
-			field.Set(reflect.New(tpField.Type.Elem()))
-		}
-
-		if isAnonymous || isStruct {
-			if sec, err := s.f.GetSection(fieldName); err == nil {
-				if err = sec.mapTo(field, isStrict); err != nil {
-					return fmt.Errorf("error mapping field(%s): %v", fieldName, err)
-				}
-				continue
-			}
-		}
-
-		if key, err := s.GetKey(fieldName); err == nil {
-			delim := parseDelim(tpField.Tag.Get("delim"))
-			if err = setWithProperType(tpField.Type, key, field, delim, allowShadow, isStrict); err != nil {
-				return fmt.Errorf("error mapping field(%s): %v", fieldName, err)
-			}
-		}
-	}
-	return nil
-}
-
-// MapTo maps section to given struct.
-func (s *Section) MapTo(v interface{}) error {
-	typ := reflect.TypeOf(v)
-	val := reflect.ValueOf(v)
-	if typ.Kind() == reflect.Ptr {
-		typ = typ.Elem()
-		val = val.Elem()
-	} else {
-		return errors.New("cannot map to non-pointer struct")
-	}
-
-	return s.mapTo(val, false)
-}
-
-// MapTo maps section to given struct in strict mode,
-// which returns all possible error including value parsing error.
-func (s *Section) StrictMapTo(v interface{}) error {
-	typ := reflect.TypeOf(v)
-	val := reflect.ValueOf(v)
-	if typ.Kind() == reflect.Ptr {
-		typ = typ.Elem()
-		val = val.Elem()
-	} else {
-		return errors.New("cannot map to non-pointer struct")
-	}
-
-	return s.mapTo(val, true)
-}
-
-// MapTo maps file to given struct.
-func (f *File) MapTo(v interface{}) error {
-	return f.Section("").MapTo(v)
-}
-
-// MapTo maps file to given struct in strict mode,
-// which returns all possible error including value parsing error.
-func (f *File) StrictMapTo(v interface{}) error {
-	return f.Section("").StrictMapTo(v)
-}
-
-// MapTo maps data sources to given struct with name mapper.
-func MapToWithMapper(v interface{}, mapper NameMapper, source interface{}, others ...interface{}) error {
-	cfg, err := Load(source, others...)
-	if err != nil {
-		return err
-	}
-	cfg.NameMapper = mapper
-	return cfg.MapTo(v)
-}
-
-// StrictMapToWithMapper maps data sources to given struct with name mapper in strict mode,
-// which returns all possible error including value parsing error.
-func StrictMapToWithMapper(v interface{}, mapper NameMapper, source interface{}, others ...interface{}) error {
-	cfg, err := Load(source, others...)
-	if err != nil {
-		return err
-	}
-	cfg.NameMapper = mapper
-	return cfg.StrictMapTo(v)
-}
-
-// MapTo maps data sources to given struct.
-func MapTo(v, source interface{}, others ...interface{}) error {
-	return MapToWithMapper(v, nil, source, others...)
-}
-
-// StrictMapTo maps data sources to given struct in strict mode,
-// which returns all possible error including value parsing error.
-func StrictMapTo(v, source interface{}, others ...interface{}) error {
-	return StrictMapToWithMapper(v, nil, source, others...)
-}
-
-// reflectSliceWithProperType does the opposite thing as setSliceWithProperType.
-func reflectSliceWithProperType(key *Key, field reflect.Value, delim string) error {
-	slice := field.Slice(0, field.Len())
-	if field.Len() == 0 {
-		return nil
-	}
-
-	var buf bytes.Buffer
-	sliceOf := field.Type().Elem().Kind()
-	for i := 0; i < field.Len(); i++ {
-		switch sliceOf {
-		case reflect.String:
-			buf.WriteString(slice.Index(i).String())
-		case reflect.Int, reflect.Int64:
-			buf.WriteString(fmt.Sprint(slice.Index(i).Int()))
-		case reflect.Uint, reflect.Uint64:
-			buf.WriteString(fmt.Sprint(slice.Index(i).Uint()))
-		case reflect.Float64:
-			buf.WriteString(fmt.Sprint(slice.Index(i).Float()))
-		case reflectTime:
-			buf.WriteString(slice.Index(i).Interface().(time.Time).Format(time.RFC3339))
-		default:
-			return fmt.Errorf("unsupported type '[]%s'", sliceOf)
-		}
-		buf.WriteString(delim)
-	}
-	key.SetValue(buf.String()[:buf.Len()-1])
-	return nil
-}
-
-// reflectWithProperType does the opposite thing as setWithProperType.
-func reflectWithProperType(t reflect.Type, key *Key, field reflect.Value, delim string) error {
-	switch t.Kind() {
-	case reflect.String:
-		key.SetValue(field.String())
-	case reflect.Bool:
-		key.SetValue(fmt.Sprint(field.Bool()))
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		key.SetValue(fmt.Sprint(field.Int()))
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-		key.SetValue(fmt.Sprint(field.Uint()))
-	case reflect.Float32, reflect.Float64:
-		key.SetValue(fmt.Sprint(field.Float()))
-	case reflectTime:
-		key.SetValue(fmt.Sprint(field.Interface().(time.Time).Format(time.RFC3339)))
-	case reflect.Slice:
-		return reflectSliceWithProperType(key, field, delim)
-	default:
-		return fmt.Errorf("unsupported type '%s'", t)
-	}
-	return nil
-}
-
-// CR: copied from encoding/json/encode.go with modifications of time.Time support.
-// TODO: add more test coverage.
-func isEmptyValue(v reflect.Value) bool {
-	switch v.Kind() {
-	case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
-		return v.Len() == 0
-	case reflect.Bool:
-		return !v.Bool()
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		return v.Int() == 0
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		return v.Uint() == 0
-	case reflect.Float32, reflect.Float64:
-		return v.Float() == 0
-	case reflect.Interface, reflect.Ptr:
-		return v.IsNil()
-	case reflectTime:
-		t, ok := v.Interface().(time.Time)
-		return ok && t.IsZero()
-	}
-	return false
-}
-
-func (s *Section) reflectFrom(val reflect.Value) error {
-	if val.Kind() == reflect.Ptr {
-		val = val.Elem()
-	}
-	typ := val.Type()
-
-	for i := 0; i < typ.NumField(); i++ {
-		field := val.Field(i)
-		tpField := typ.Field(i)
-
-		tag := tpField.Tag.Get("ini")
-		if tag == "-" {
-			continue
-		}
-
-		opts := strings.SplitN(tag, ",", 2)
-		if len(opts) == 2 && opts[1] == "omitempty" && isEmptyValue(field) {
-			continue
-		}
-
-		fieldName := s.parseFieldName(tpField.Name, opts[0])
-		if len(fieldName) == 0 || !field.CanSet() {
-			continue
-		}
-
-		if (tpField.Type.Kind() == reflect.Ptr && tpField.Anonymous) ||
-			(tpField.Type.Kind() == reflect.Struct && tpField.Type.Name() != "Time") {
-			// Note: The only error here is section doesn't exist.
-			sec, err := s.f.GetSection(fieldName)
-			if err != nil {
-				// Note: fieldName can never be empty here, ignore error.
-				sec, _ = s.f.NewSection(fieldName)
-			}
-
-			// Add comment from comment tag
-			if len(sec.Comment) == 0 {
-				sec.Comment = tpField.Tag.Get("comment")
-			}
-
-			if err = sec.reflectFrom(field); err != nil {
-				return fmt.Errorf("error reflecting field (%s): %v", fieldName, err)
-			}
-			continue
-		}
-
-		// Note: Same reason as secion.
-		key, err := s.GetKey(fieldName)
-		if err != nil {
-			key, _ = s.NewKey(fieldName, "")
-		}
-
-		// Add comment from comment tag
-		if len(key.Comment) == 0 {
-			key.Comment = tpField.Tag.Get("comment")
-		}
-
-		if err = reflectWithProperType(tpField.Type, key, field, parseDelim(tpField.Tag.Get("delim"))); err != nil {
-			return fmt.Errorf("error reflecting field (%s): %v", fieldName, err)
-		}
-
-	}
-	return nil
-}
-
-// ReflectFrom reflects secion from given struct.
-func (s *Section) ReflectFrom(v interface{}) error {
-	typ := reflect.TypeOf(v)
-	val := reflect.ValueOf(v)
-	if typ.Kind() == reflect.Ptr {
-		typ = typ.Elem()
-		val = val.Elem()
-	} else {
-		return errors.New("cannot reflect from non-pointer struct")
-	}
-
-	return s.reflectFrom(val)
-}
-
-// ReflectFrom reflects file from given struct.
-func (f *File) ReflectFrom(v interface{}) error {
-	return f.Section("").ReflectFrom(v)
-}
-
-// ReflectFrom reflects data sources from given struct with name mapper.
-func ReflectFromWithMapper(cfg *File, v interface{}, mapper NameMapper) error {
-	cfg.NameMapper = mapper
-	return cfg.ReflectFrom(v)
-}
-
-// ReflectFrom reflects data sources from given struct.
-func ReflectFrom(cfg *File, v interface{}) error {
-	return ReflectFromWithMapper(cfg, v, nil)
-}
diff --git a/vendor/github.com/gocarina/gocsv/.travis.yml b/vendor/github.com/gocarina/gocsv/.travis.yml
new file mode 100644
index 0000000..4f2ee4d
--- /dev/null
+++ b/vendor/github.com/gocarina/gocsv/.travis.yml
@@ -0,0 +1 @@
+language: go
diff --git a/vendor/github.com/gocarina/gocsv/README.md b/vendor/github.com/gocarina/gocsv/README.md
index c3fae62..e606ac7 100644
--- a/vendor/github.com/gocarina/gocsv/README.md
+++ b/vendor/github.com/gocarina/gocsv/README.md
@@ -36,8 +36,9 @@ package main
 
 import (
 	"fmt"
-	"gocsv"
 	"os"
+
+	"github.com/gocarina/gocsv"
 )
 
 type Client struct { // Our example struct, you can use "-" to ignore a field
@@ -104,10 +105,7 @@ func (date *DateTime) String() (string) {
 // Convert the CSV string as internal date
 func (date *DateTime) UnmarshalCSV(csv string) (err error) {
 	date.Time, err = time.Parse("20060201", csv)
-	if err != nil {
-		return err
-	}
-	return nil
+	return err
 }
 
 type Client struct { // Our example struct with a custom type (DateTime)
diff --git a/vendor/github.com/gocarina/gocsv/csv.go b/vendor/github.com/gocarina/gocsv/csv.go
index 2e336ea..22846c0 100644
--- a/vendor/github.com/gocarina/gocsv/csv.go
+++ b/vendor/github.com/gocarina/gocsv/csv.go
@@ -14,6 +14,7 @@ import (
 	"os"
 	"reflect"
 	"strings"
+	"sync"
 )
 
 // FailIfUnmatchedStructTags indicates whether it is considered an error when there is an unmatched
@@ -28,9 +29,33 @@ var FailIfDoubleHeaderNames = false
 // headers per their alignment in the struct definition.
 var ShouldAlignDuplicateHeadersWithStructFieldOrder = false
 
+// TagName defines key in the struct field's tag to scan
+var TagName = "csv"
+
 // TagSeparator defines seperator string for multiple csv tags in struct fields
 var TagSeparator = ","
 
+// Normalizer is a function that takes and returns a string. It is applied to
+// struct and header field values before they are compared. It can be used to alter
+// names for comparison. For instance, you could allow case insensitive matching
+// or convert '-' to '_'.
+type Normalizer func(string) string
+
+type ErrorHandler func(*csv.ParseError) bool
+
+// normalizeName function initially set to a nop Normalizer.
+var normalizeName = DefaultNameNormalizer()
+
+// DefaultNameNormalizer is a nop Normalizer.
+func DefaultNameNormalizer() Normalizer { return func(s string) string { return s } }
+
+// SetHeaderNormalizer sets the normalizer used to normalize struct and header field names.
+func SetHeaderNormalizer(f Normalizer) {
+	normalizeName = f
+	// Need to clear the cache hen the header normalizer changes.
+	structInfoCache = sync.Map{}
+}
+
 // --------------------------------------------------------------------------
 // CSVWriter used to format CSV
 
@@ -117,7 +142,7 @@ func Marshal(in interface{}, out io.Writer) (err error) {
 	return writeTo(writer, in, false)
 }
 
-// Marshal returns the CSV in writer from the interface.
+// MarshalWithoutHeaders returns the CSV in writer from the interface.
 func MarshalWithoutHeaders(in interface{}, out io.Writer) (err error) {
 	writer := getCSVWriter(out)
 	return writeTo(writer, in, true)
@@ -146,6 +171,11 @@ func UnmarshalFile(in *os.File, out interface{}) error {
 	return Unmarshal(in, out)
 }
 
+// UnmarshalFile parses the CSV from the file in the interface.
+func UnmarshalFileWithErrorHandler(in *os.File, errHandler ErrorHandler, out interface{}) error {
+	return UnmarshalWithErrorHandler(in, errHandler, out)
+}
+
 // UnmarshalString parses the CSV from the string in the interface.
 func UnmarshalString(in string, out interface{}) error {
 	return Unmarshal(strings.NewReader(in), out)
@@ -158,7 +188,22 @@ func UnmarshalBytes(in []byte, out interface{}) error {
 
 // Unmarshal parses the CSV from the reader in the interface.
 func Unmarshal(in io.Reader, out interface{}) error {
-	return readTo(newDecoder(in), out)
+	return readTo(newSimpleDecoderFromReader(in), out)
+}
+
+// Unmarshal parses the CSV from the reader in the interface.
+func UnmarshalWithErrorHandler(in io.Reader, errHandle ErrorHandler, out interface{}) error {
+	return readToWithErrorHandler(newSimpleDecoderFromReader(in), errHandle, out)
+}
+
+// UnmarshalWithoutHeaders parses the CSV from the reader in the interface.
+func UnmarshalWithoutHeaders(in io.Reader, out interface{}) error {
+	return readToWithoutHeaders(newSimpleDecoderFromReader(in), out)
+}
+
+// UnmarshalCSVWithoutHeaders parses a headerless CSV with passed in CSV reader
+func UnmarshalCSVWithoutHeaders(in CSVReader, out interface{}) error {
+	return readToWithoutHeaders(csvDecoder{in}, out)
 }
 
 // UnmarshalDecoder parses the CSV from the decoder in the interface
@@ -177,7 +222,16 @@ func UnmarshalToChan(in io.Reader, c interface{}) error {
 	if c == nil {
 		return fmt.Errorf("goscv: channel is %v", c)
 	}
-	return readEach(newDecoder(in), c)
+	return readEach(newSimpleDecoderFromReader(in), c)
+}
+
+// UnmarshalToChanWithoutHeaders parses the CSV from the reader and send each value in the chan c.
+// The channel must have a concrete type.
+func UnmarshalToChanWithoutHeaders(in io.Reader, c interface{}) error {
+	if c == nil {
+		return fmt.Errorf("goscv: channel is %v", c)
+	}
+	return readEachWithoutHeaders(newSimpleDecoderFromReader(in), c)
 }
 
 // UnmarshalDecoderToChan parses the CSV from the decoder and send each value in the chan c.
@@ -269,9 +323,88 @@ func UnmarshalStringToCallback(in string, c interface{}) (err error) {
 	return UnmarshalToCallback(strings.NewReader(in), c)
 }
 
+// UnmarshalToCallbackWithError parses the CSV from the reader and
+// send each value to the given func f.
+//
+// If func returns error, it will stop processing, drain the
+// parser and propagate the error to caller.
+//
+// The func must look like func(Struct) error.
+func UnmarshalToCallbackWithError(in io.Reader, f interface{}) error {
+	valueFunc := reflect.ValueOf(f)
+	t := reflect.TypeOf(f)
+	if t.NumIn() != 1 {
+		return fmt.Errorf("the given function must have exactly one parameter")
+	}
+	if t.NumOut() != 1 {
+		return fmt.Errorf("the given function must have exactly one return value")
+	}
+	if !isErrorType(t.Out(0)) {
+		return fmt.Errorf("the given function must only return error.")
+	}
+
+	cerr := make(chan error)
+	c := reflect.MakeChan(reflect.ChanOf(reflect.BothDir, t.In(0)), 0)
+	go func() {
+		cerr <- UnmarshalToChan(in, c.Interface())
+	}()
+
+	var fErr error
+	for {
+		select {
+		case err := <-cerr:
+			if err != nil {
+				return err
+			}
+			return fErr
+		default:
+		}
+		v, notClosed := c.Recv()
+		if !notClosed || v.Interface() == nil {
+			break
+		}
+
+		// callback f has already returned an error, stop processing but keep draining the chan c
+		if fErr != nil {
+			continue
+		}
+
+		results := valueFunc.Call([]reflect.Value{v})
+
+		// If the callback f returns an error, stores it and returns it in future.
+		errValue := results[0].Interface()
+		if errValue != nil {
+			fErr = errValue.(error)
+		}
+	}
+	return fErr
+}
+
+// UnmarshalBytesToCallbackWithError parses the CSV from the bytes and
+// send each value to the given func f.
+//
+// If func returns error, it will stop processing, drain the
+// parser and propagate the error to caller.
+//
+// The func must look like func(Struct) error.
+func UnmarshalBytesToCallbackWithError(in []byte, f interface{}) error {
+	return UnmarshalToCallbackWithError(bytes.NewReader(in), f)
+}
+
+// UnmarshalStringToCallbackWithError parses the CSV from the string and
+// send each value to the given func f.
+//
+// If func returns error, it will stop processing, drain the
+// parser and propagate the error to caller.
+//
+// The func must look like func(Struct) error.
+func UnmarshalStringToCallbackWithError(in string, c interface{}) (err error) {
+	return UnmarshalToCallbackWithError(strings.NewReader(in), c)
+}
+
 // CSVToMap creates a simple map from a CSV of 2 columns.
 func CSVToMap(in io.Reader) (map[string]string, error) {
-	decoder := newDecoder(in)
+	decoder := newSimpleDecoderFromReader(in)
 	header, err := decoder.getCSVRow()
 	if err != nil {
 		return nil, err
@@ -317,3 +450,28 @@ func CSVToMaps(reader io.Reader) ([]map[string]string, error) {
 	}
 	return rows, nil
 }
+
+// CSVToChanMaps parses the CSV from the reader and send a dictionary in the chan c, using the header row as the keys.
+func CSVToChanMaps(reader io.Reader, c chan<- map[string]string) error {
+	r := csv.NewReader(reader)
+	var header []string
+	for {
+		record, err := r.Read()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return err
+		}
+		if header == nil {
+			header = record
+		} else {
+			dict := map[string]string{}
+			for i := range header {
+				dict[header[i]] = record[i]
+			}
+			c <- dict
+		}
+	}
+	return nil
+}
diff --git a/vendor/github.com/gocarina/gocsv/decode.go b/vendor/github.com/gocarina/gocsv/decode.go
index 980d7f7..a832e84 100644
--- a/vendor/github.com/gocarina/gocsv/decode.go
+++ b/vendor/github.com/gocarina/gocsv/decode.go
@@ -16,26 +16,7 @@ type Decoder interface {
 // SimpleDecoder .
 type SimpleDecoder interface {
 	getCSVRow() ([]string, error)
-}
-
-type decoder struct {
-	in         io.Reader
-	csvDecoder *csvDecoder
-}
-
-func newDecoder(in io.Reader) *decoder {
-	return &decoder{in: in}
-}
-
-func (decode *decoder) getCSVRows() ([][]string, error) {
-	return getCSVReader(decode.in).ReadAll()
-}
-
-func (decode *decoder) getCSVRow() ([]string, error) {
-	if decode.csvDecoder == nil {
-		decode.csvDecoder = &csvDecoder{getCSVReader(decode.in)}
-	}
-	return decode.csvDecoder.Read()
+	getCSVRows() ([][]string, error)
 }
 
 type CSVReader interface {
@@ -47,6 +28,18 @@ type csvDecoder struct {
 	CSVReader
 }
 
+func newSimpleDecoderFromReader(r io.Reader) SimpleDecoder {
+	return csvDecoder{getCSVReader(r)}
+}
+
+// NewSimpleDecoderFromCSVReader creates a SimpleDecoder, which may be passed
+// to the UnmarshalDecoder* family of functions, from a CSV reader. Note that
+// encoding/csv.Reader implements CSVReader, so you can pass one of those
+// directly here.
+func NewSimpleDecoderFromCSVReader(r CSVReader) SimpleDecoder {
+	return csvDecoder{r}
+}
+
 func (c csvDecoder) getCSVRows() ([][]string, error) {
 	return c.ReadAll()
 }
@@ -87,7 +80,7 @@ func mismatchHeaderFields(structInfo []fieldInfo, headers []string) []string {
 		return missing
 	}
 
-	keyMap := make(map[string]struct{}, 0)
+	keyMap := make(map[string]struct{})
 	for _, info := range structInfo {
 		for _, key := range info.keys {
 			keyMap[key] = struct{}{}
@@ -115,14 +108,27 @@ func maybeDoubleHeaderNames(headers []string) error {
 	headerMap := make(map[string]bool, len(headers))
 	for _, v := range headers {
 		if _, ok := headerMap[v]; ok {
-			return fmt.Errorf("Repeated header name: %v", v)
+			return fmt.Errorf("repeated header name: %v", v)
 		}
 		headerMap[v] = true
 	}
 	return nil
 }
 
+// apply normalizer func to headers
+func normalizeHeaders(headers []string) []string {
+	out := make([]string, len(headers))
+	for i, h := range headers {
+		out[i] = normalizeName(h)
+	}
+	return out
+}
+
 func readTo(decoder Decoder, out interface{}) error {
+	return readToWithErrorHandler(decoder, nil, out)
+}
+
+func readToWithErrorHandler(decoder Decoder, errHandler ErrorHandler, out interface{}) error {
 	outValue, outType := getConcreteReflectValueAndType(out) // Get the concrete type (not pointer) (Slice<?> or Array<?>)
 	if err := ensureOutType(outType); err != nil {
 		return err
@@ -146,7 +152,7 @@ func readTo(decoder Decoder, out interface{}) error {
 		return errors.New("no csv struct tags found")
 	}
 
-	headers := csvRows[0]
+	headers := normalizeHeaders(csvRows[0])
 	body := csvRows[1:]
 
 	csvHeadersLabels := make(map[int]*fieldInfo, len(outInnerStructInfo.Fields)) // Used to store the correspondance header <-> position in CSV
@@ -174,34 +180,66 @@ func readTo(decoder Decoder, out interface{}) error {
 		}
 	}
 
+	var withFieldsOK bool
+	var fieldTypeUnmarshallerWithKeys TypeUnmarshalCSVWithFields
+
 	for i, csvRow := range body {
+		objectIface := reflect.New(outValue.Index(i).Type()).Interface()
 		outInner := createNewOutInner(outInnerWasPointer, outInnerType)
 		for j, csvColumnContent := range csvRow {
 			if fieldInfo, ok := csvHeadersLabels[j]; ok { // Position found accordingly to header name
+
+				if outInner.CanInterface() {
+					fieldTypeUnmarshallerWithKeys, withFieldsOK = objectIface.(TypeUnmarshalCSVWithFields)
+					if withFieldsOK {
+						if err := fieldTypeUnmarshallerWithKeys.UnmarshalCSVWithFields(fieldInfo.getFirstKey(), csvColumnContent); err != nil {
+							parseError := csv.ParseError{
+								Line:   i + 2, //add 2 to account for the header & 0-indexing of arrays
+								Column: j + 1,
+								Err:    err,
+							}
+							return &parseError
+						}
+						continue
+					}
+				}
+
 				if err := setInnerField(&outInner, outInnerWasPointer, fieldInfo.IndexChain, csvColumnContent, fieldInfo.omitEmpty); err != nil { // Set field of struct
-					return &csv.ParseError{
+					parseError := csv.ParseError{
 						Line:   i + 2, //add 2 to account for the header & 0-indexing of arrays
 						Column: j + 1,
 						Err:    err,
 					}
+					if errHandler == nil || !errHandler(&parseError) {
+						return &parseError
+					}
 				}
 			}
 		}
+
+		if withFieldsOK {
+			reflectedObject := reflect.ValueOf(objectIface)
+			outInner = reflectedObject.Elem()
+		}
+
 		outValue.Index(i).Set(outInner)
 	}
 	return nil
 }
 
 func readEach(decoder SimpleDecoder, c interface{}) error {
+	outValue, outType := getConcreteReflectValueAndType(c) // Get the concrete type (not pointer)
+	if outType.Kind() != reflect.Chan {
+		return fmt.Errorf("cannot use %v with type %s, only channel supported", c, outType)
+	}
+	defer outValue.Close()
+
 	headers, err := decoder.getCSVRow()
 	if err != nil {
 		return err
 	}
-	outValue, outType := getConcreteReflectValueAndType(c) // Get the concrete type (not pointer) (Slice<?> or Array<?>)
-	if err := ensureOutType(outType); err != nil {
-		return err
-	}
-	defer outValue.Close()
+	headers = normalizeHeaders(headers)
+
 	outInnerWasPointer, outInnerType := getConcreteContainerInnerType(outType) // Get the concrete inner type (not pointer) (Container<"?">)
 	if err := ensureOutInnerType(outInnerType); err != nil {
 		return err
@@ -258,6 +296,89 @@ func readEach(decoder SimpleDecoder, c interface{}) error {
 	return nil
 }
 
+func readEachWithoutHeaders(decoder SimpleDecoder, c interface{}) error {
+	outValue, outType := getConcreteReflectValueAndType(c) // Get the concrete type (not pointer) (Slice<?> or Array<?>)
+	if err := ensureOutType(outType); err != nil {
+		return err
+	}
+	defer outValue.Close()
+
+	outInnerWasPointer, outInnerType := getConcreteContainerInnerType(outType) // Get the concrete inner type (not pointer) (Container<"?">)
+	if err := ensureOutInnerType(outInnerType); err != nil {
+		return err
+	}
+	outInnerStructInfo := getStructInfo(outInnerType) // Get the inner struct info to get CSV annotations
+	if len(outInnerStructInfo.Fields) == 0 {
+		return errors.New("no csv struct tags found")
+	}
+
+	i := 0
+	for {
+		line, err := decoder.getCSVRow()
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			return err
+		}
+		outInner := createNewOutInner(outInnerWasPointer, outInnerType)
+		for j, csvColumnContent := range line {
+			fieldInfo := outInnerStructInfo.Fields[j]
+			if err := setInnerField(&outInner, outInnerWasPointer, fieldInfo.IndexChain, csvColumnContent, fieldInfo.omitEmpty); err != nil { // Set field of struct
+				return &csv.ParseError{
+					Line:   i + 2, //add 2 to account for the header & 0-indexing of arrays
+					Column: j + 1,
+					Err:    err,
+				}
+			}
+		}
+		outValue.Send(outInner)
+		i++
+	}
+	return nil
+}
+
+func readToWithoutHeaders(decoder Decoder, out interface{}) error {
+	outValue, outType := getConcreteReflectValueAndType(out) // Get the concrete type (not pointer) (Slice<?> or Array<?>)
+	if err := ensureOutType(outType); err != nil {
+		return err
+	}
+	outInnerWasPointer, outInnerType := getConcreteContainerInnerType(outType) // Get the concrete inner type (not pointer) (Container<"?">)
+	if err := ensureOutInnerType(outInnerType); err != nil {
+		return err
+	}
+	csvRows, err := decoder.getCSVRows() // Get the CSV csvRows
+	if err != nil {
+		return err
+	}
+	if len(csvRows) == 0 {
+		return errors.New("empty csv file given")
+	}
+	if err := ensureOutCapacity(&outValue, len(csvRows)+1); err != nil { // Ensure the container is big enough to hold the CSV content
+		return err
+	}
+	outInnerStructInfo := getStructInfo(outInnerType) // Get the inner struct info to get CSV annotations
+	if len(outInnerStructInfo.Fields) == 0 {
+		return errors.New("no csv struct tags found")
+	}
+
+	for i, csvRow := range csvRows {
+		outInner := createNewOutInner(outInnerWasPointer, outInnerType)
+		for j, csvColumnContent := range csvRow {
+			fieldInfo := outInnerStructInfo.Fields[j]
+			if err := setInnerField(&outInner, outInnerWasPointer, fieldInfo.IndexChain, csvColumnContent, fieldInfo.omitEmpty); err != nil { // Set field of struct
+				return &csv.ParseError{
+					Line:   i + 1,
+					Column: j + 1,
+					Err:    err,
+				}
+			}
+		}
+		outValue.Index(i).Set(outInner)
+	}
+
+	return nil
+}
+
 // Check if the outType is an array or a slice
 func ensureOutType(outType reflect.Type) error {
 	switch outType.Kind() {
@@ -302,9 +423,8 @@ func getCSVFieldPosition(key string, structInfo *structInfo, curHeaderCount int)
 		if field.matchesKey(key) {
 			if matchedFieldCount >= curHeaderCount {
 				return &field
-			} else {
-				matchedFieldCount++
 			}
+			matchedFieldCount++
 		}
 	}
 	return nil
@@ -320,7 +440,16 @@ func createNewOutInner(outInnerWasPointer bool, outInnerType reflect.Type) refle
 func setInnerField(outInner *reflect.Value, outInnerWasPointer bool, index []int, value string, omitEmpty bool) error {
 	oi := *outInner
 	if outInnerWasPointer {
+		// initialize nil pointer
+		if oi.IsNil() {
+			setField(oi, "", omitEmpty)
+		}
 		oi = outInner.Elem()
 	}
+	// because pointers can be nil need to recurse one index at a time and perform nil check
+	if len(index) > 1 {
+		nextField := oi.Field(index[0])
+		return setInnerField(&nextField, nextField.Kind() == reflect.Ptr, index[1:], value, omitEmpty)
+	}
 	return setField(oi.FieldByIndex(index), value, omitEmpty)
 }
diff --git a/vendor/github.com/gocarina/gocsv/encode.go b/vendor/github.com/gocarina/gocsv/encode.go
index 7a41f9f..8671533 100644
--- a/vendor/github.com/gocarina/gocsv/encode.go
+++ b/vendor/github.com/gocarina/gocsv/encode.go
@@ -133,7 +133,15 @@ func ensureInInnerType(outInnerType reflect.Type) error {
 func getInnerField(outInner reflect.Value, outInnerWasPointer bool, index []int) (string, error) {
 	oi := outInner
 	if outInnerWasPointer {
+		if oi.IsNil() {
+			return "", nil
+		}
 		oi = outInner.Elem()
 	}
+	// because pointers can be nil need to recurse one index at a time and perform nil check
+	if len(index) > 1 {
+		nextField := oi.Field(index[0])
+		return getInnerField(nextField, nextField.Kind() == reflect.Ptr, index[1:])
+	}
 	return getFieldAsString(oi.FieldByIndex(index))
 }
diff --git a/vendor/github.com/gocarina/gocsv/go.mod b/vendor/github.com/gocarina/gocsv/go.mod
new file mode 100644
index 0000000..c746a5a
--- /dev/null
+++ b/vendor/github.com/gocarina/gocsv/go.mod
@@ -0,0 +1,3 @@
+module github.com/gocarina/gocsv
+
+go 1.13
diff --git a/vendor/github.com/gocarina/gocsv/reflect.go b/vendor/github.com/gocarina/gocsv/reflect.go
index 9217e30..dfc63b3 100644
--- a/vendor/github.com/gocarina/gocsv/reflect.go
+++ b/vendor/github.com/gocarina/gocsv/reflect.go
@@ -35,19 +35,21 @@ func (f fieldInfo) matchesKey(key string) bool {
 	return false
 }
 
+var structInfoCache sync.Map
 var structMap = make(map[reflect.Type]*structInfo)
 var structMapMutex sync.RWMutex
 
 func getStructInfo(rType reflect.Type) *structInfo {
-	structMapMutex.RLock()
-	stInfo, ok := structMap[rType]
-	structMapMutex.RUnlock()
+	stInfo, ok := structInfoCache.Load(rType)
 	if ok {
-		return stInfo
+		return stInfo.(*structInfo)
 	}
+
 	fieldsList := getFieldInfos(rType, []int{})
 	stInfo = &structInfo{fieldsList}
-	return stInfo
+	structInfoCache.Store(rType, stInfo)
+
+	return stInfo.(*structInfo)
 }
 
 func getFieldInfos(rType reflect.Type, parentIndexChain []int) []fieldInfo {
@@ -58,19 +60,40 @@ func getFieldInfos(rType reflect.Type, parentIndexChain []int) []fieldInfo {
 		if field.PkgPath != "" {
 			continue
 		}
-		indexChain := append(parentIndexChain, i)
-		// if the field is an embedded struct, create a fieldInfo for each of its fields
-		if field.Anonymous && field.Type.Kind() == reflect.Struct {
-			fieldsList = append(fieldsList, getFieldInfos(field.Type, indexChain)...)
+
+		var cpy = make([]int, len(parentIndexChain))
+		copy(cpy, parentIndexChain)
+		indexChain := append(cpy, i)
+
+		// if the field is a pointer to a struct, follow the pointer then create fieldinfo for each field
+		if field.Type.Kind() == reflect.Ptr && field.Type.Elem().Kind() == reflect.Struct {
+			// unless it implements marshalText or marshalCSV. Structs that implement this
+			// should result in one value and not have their fields exposed
+			if !(canMarshal(field.Type.Elem())) {
+				fieldsList = append(fieldsList, getFieldInfos(field.Type.Elem(), indexChain)...)
+			}
+		}
+		// if the field is a struct, create a fieldInfo for each of its fields
+		if field.Type.Kind() == reflect.Struct {
+			// unless it implements marshalText or marshalCSV. Structs that implement this
+			// should result in one value and not have their fields exposed
+			if !(canMarshal(field.Type)) {
+				fieldsList = append(fieldsList, getFieldInfos(field.Type, indexChain)...)
+			}
+		}
+
+		// if the field is an embedded struct, ignore the csv tag
+		if field.Anonymous {
 			continue
 		}
+
 		fieldInfo := fieldInfo{IndexChain: indexChain}
-		fieldTag := field.Tag.Get("csv")
+		fieldTag := field.Tag.Get(TagName)
 		fieldTags := strings.Split(fieldTag, TagSeparator)
 		filteredTags := []string{}
 		for _, fieldTagEntry := range fieldTags {
 			if fieldTagEntry != "omitempty" {
-				filteredTags = append(filteredTags, fieldTagEntry)
+				filteredTags = append(filteredTags, normalizeName(fieldTagEntry))
 			} else {
 				fieldInfo.omitEmpty = true
 			}
@@ -81,7 +104,7 @@ func getFieldInfos(rType reflect.Type, parentIndexChain []int) []fieldInfo {
 		} else if len(filteredTags) > 0 && filteredTags[0] != "" {
 			fieldInfo.keys = filteredTags
 		} else {
-			fieldInfo.keys = []string{field.Name}
+			fieldInfo.keys = []string{normalizeName(field.Name)}
 		}
 		fieldsList = append(fieldsList, fieldInfo)
 	}
@@ -105,3 +128,13 @@ func getConcreteReflectValueAndType(in interface{}) (reflect.Value, reflect.Type
 	}
 	return value, value.Type()
 }
+
+var errorInterface = reflect.TypeOf((*error)(nil)).Elem()
+
+func isErrorType(outType reflect.Type) bool {
+	if outType.Kind() != reflect.Interface {
+		return false
+	}
+
+	return outType.Implements(errorInterface)
+}
diff --git a/vendor/github.com/gocarina/gocsv/types.go b/vendor/github.com/gocarina/gocsv/types.go
index 50d88ce..a5dda89 100644
--- a/vendor/github.com/gocarina/gocsv/types.go
+++ b/vendor/github.com/gocarina/gocsv/types.go
@@ -6,6 +6,8 @@ import (
 	"reflect"
 	"strconv"
 	"strings"
+
+	"encoding/json"
 )
 
 // --------------------------------------------------------------------------
@@ -17,19 +19,17 @@ type TypeMarshaller interface {
 	MarshalCSV() (string, error)
 }
 
-// Stringer is implemented by any value that has a String method
-// This converter is used to convert the value to it string representation
-// This converter will be used if your value does not implement TypeMarshaller
-type Stringer interface {
-	String() string
-}
-
 // TypeUnmarshaller is implemented by any value that has an UnmarshalCSV method
 // This converter is used to convert a string to your value representation of that string
 type TypeUnmarshaller interface {
 	UnmarshalCSV(string) error
 }
 
+// TypeUnmarshalCSVWithFields can be implemented on whole structs to allow for whole structures to customized internal vs one off fields
+type TypeUnmarshalCSVWithFields interface {
+	UnmarshalCSVWithFields(key, value string) error
+}
+
 // NoUnmarshalFuncError is the custom error type to be raised in case there is no unmarshal function defined on type
 type NoUnmarshalFuncError struct {
 	msg string
@@ -41,21 +41,13 @@ func (e NoUnmarshalFuncError) Error() string {
 
 // NoMarshalFuncError is the custom error type to be raised in case there is no marshal function defined on type
 type NoMarshalFuncError struct {
-	msg string
+	ty reflect.Type
 }
 
 func (e NoMarshalFuncError) Error() string {
-	return e.msg
+	return "No known conversion from " + e.ty.String() + " to string, " + e.ty.String() + " does not implement TypeMarshaller nor Stringer"
 }
 
-var (
-	stringerType        = reflect.TypeOf((*Stringer)(nil)).Elem()
-	marshallerType      = reflect.TypeOf((*TypeMarshaller)(nil)).Elem()
-	unMarshallerType    = reflect.TypeOf((*TypeUnmarshaller)(nil)).Elem()
-	textMarshalerType   = reflect.TypeOf((*encoding.TextMarshaler)(nil)).Elem()
-	textUnMarshalerType = reflect.TypeOf((*encoding.TextUnmarshaler)(nil)).Elem()
-)
-
 // --------------------------------------------------------------------------
 // Conversion helpers
 
@@ -89,12 +81,12 @@ func toBool(in interface{}) (bool, error) {
 	switch inValue.Kind() {
 	case reflect.String:
 		s := inValue.String()
-		switch s {
-		case "yes":
+		s = strings.TrimSpace(s)
+		if strings.EqualFold(s, "yes") {
 			return true, nil
-		case "no", "":
+		} else if strings.EqualFold(s, "no") || s == "" {
 			return false, nil
-		default:
+		} else {
 			return strconv.ParseBool(s)
 		}
 	case reflect.Bool:
@@ -130,7 +122,8 @@ func toInt(in interface{}) (int64, error) {
 		if s == "" {
 			return 0, nil
 		}
-		return strconv.ParseInt(s, 0, 64)
+		out := strings.SplitN(s, ".", 2)
+		return strconv.ParseInt(out[0], 0, 64)
 	case reflect.Bool:
 		if inValue.Bool() {
 			return 1, nil
@@ -285,6 +278,11 @@ func setField(field reflect.Value, value string, omitEmpty bool) error {
 					return err
 				}
 				field.SetFloat(f)
+			case reflect.Slice, reflect.Struct:
+				err := json.Unmarshal([]byte(value), field.Addr().Interface())
+				if err != nil {
+					return err
+				}
 			default:
 				return err
 			}
@@ -297,32 +295,28 @@ func setField(field reflect.Value, value string, omitEmpty bool) error {
 
 func getFieldAsString(field reflect.Value) (str string, err error) {
 	switch field.Kind() {
-	case reflect.Interface:
-	case reflect.Ptr:
+	case reflect.Interface, reflect.Ptr:
 		if field.IsNil() {
 			return "", nil
 		}
 		return getFieldAsString(field.Elem())
+	case reflect.String:
+		return field.String(), nil
 	default:
 		// Check if field is go native type
 		switch field.Interface().(type) {
 		case string:
 			return field.String(), nil
 		case bool:
-			str, err = toString(field.Bool())
-			if err != nil {
-				return str, err
+			if field.Bool() {
+				return "true", nil
+			} else {
+				return "false", nil
 			}
 		case int, int8, int16, int32, int64:
-			str, err = toString(field.Int())
-			if err != nil {
-				return str, err
-			}
+			return fmt.Sprintf("%v", field.Int()), nil
 		case uint, uint8, uint16, uint32, uint64:
-			str, err = toString(field.Uint())
-			if err != nil {
-				return str, err
-			}
+			return fmt.Sprintf("%v", field.Uint()), nil
 		case float32:
 			str, err = toString(float32(field.Float()))
 			if err != nil {
@@ -381,6 +375,14 @@ func getFieldAsString(field reflect.Value) (str string, err error) {
 // --------------------------------------------------------------------------
 // Un/serializations helpers
 
+func canMarshal(t reflect.Type) bool {
+	// unless it implements marshalText or marshalCSV. Structs that implement this
+	// should result in one value and not have their fields exposed
+	_, canMarshalText := t.MethodByName("MarshalText")
+	_, canMarshalCSV := t.MethodByName("MarshalCSV")
+	return canMarshalCSV || canMarshalText
+}
+
 func unmarshall(field reflect.Value, value string) error {
 	dupField := field
 	unMarshallIt := func(finalField reflect.Value) error {
@@ -435,13 +437,13 @@ func marshall(field reflect.Value) (value string, err error) {
 			}
 
 			// Otherwise try to use Stringer
-			fieldStringer, ok := fieldIface.(Stringer)
+			fieldStringer, ok := fieldIface.(fmt.Stringer)
 			if ok {
 				return fieldStringer.String(), nil
 			}
 		}
 
-		return value, NoMarshalFuncError{"No known conversion from " + field.Type().String() + " to string, " + field.Type().String() + " does not implement TypeMarshaller nor Stringer"}
+		return value, NoMarshalFuncError{field.Type()}
 	}
 	for dupField.Kind() == reflect.Interface || dupField.Kind() == reflect.Ptr {
 		if dupField.IsNil() {
@@ -450,7 +452,7 @@ func marshall(field reflect.Value) (value string, err error) {
 		dupField = dupField.Elem()
 	}
 	if dupField.CanAddr() {
-		return marshallIt(dupField.Addr())
+		dupField = dupField.Addr()
 	}
-	return value, NoMarshalFuncError{"No known conversion from " + field.Type().String() + " to string, " + field.Type().String() + " does not implement TypeMarshaller nor Stringer"}
+	return marshallIt(dupField)
 }
diff --git a/vendor/github.com/gocarina/gocsv/unmarshaller.go b/vendor/github.com/gocarina/gocsv/unmarshaller.go
index ace601e..87e6a8f 100644
--- a/vendor/github.com/gocarina/gocsv/unmarshaller.go
+++ b/vendor/github.com/gocarina/gocsv/unmarshaller.go
@@ -10,7 +10,8 @@ import (
 // Unmarshaller is a CSV to struct unmarshaller.
 type Unmarshaller struct {
 	reader                 *csv.Reader
-	fieldInfoMap           map[int]*fieldInfo
+	Headers                []string
+	fieldInfoMap           []*fieldInfo
 	MismatchedHeaders      []string
 	MismatchedStructFields []string
 	outType                reflect.Type
@@ -22,6 +23,7 @@ func NewUnmarshaller(reader *csv.Reader, out interface{}) (*Unmarshaller, error)
 	if err != nil {
 		return nil, err
 	}
+	headers = normalizeHeaders(headers)
 
 	um := &Unmarshaller{reader: reader, outType: reflect.TypeOf(out)}
 	err = validate(um, out, headers)
@@ -38,7 +40,18 @@ func (um *Unmarshaller) Read() (interface{}, error) {
 	if err != nil {
 		return nil, err
 	}
-	return um.unmarshalRow(row)
+	return um.unmarshalRow(row, nil)
+}
+
+// ReadUnmatched is same as Read(), but returns a map of the columns that didn't match a field in the struct
+func (um *Unmarshaller) ReadUnmatched() (interface{}, map[string]string, error) {
+	row, err := um.reader.Read()
+	if err != nil {
+		return nil, nil, err
+	}
+	unmatched := make(map[string]string)
+	value, err := um.unmarshalRow(row, unmatched)
+	return value, unmatched, err
 }
 
 // validate ensures that a struct was used to create the Unmarshaller, and validates
@@ -55,7 +68,7 @@ func validate(um *Unmarshaller, s interface{}, headers []string) error {
 	if len(structInfo.Fields) == 0 {
 		return errors.New("no csv struct tags found")
 	}
-	csvHeadersLabels := make(map[int]*fieldInfo, len(structInfo.Fields)) // Used to store the corresponding header <-> position in CSV
+	csvHeadersLabels := make([]*fieldInfo, len(headers)) // Used to store the corresponding header <-> position in CSV
 	headerCount := map[string]int{}
 	for i, csvColumnHeader := range headers {
 		curHeaderCount := headerCount[csvColumnHeader]
@@ -67,10 +80,14 @@ func validate(um *Unmarshaller, s interface{}, headers []string) error {
 			}
 		}
 	}
-	if err := maybeDoubleHeaderNames(headers); err != nil {
-		return err
+
+	if FailIfDoubleHeaderNames {
+		if err := maybeDoubleHeaderNames(headers); err != nil {
+			return err
+		}
 	}
 
+	um.Headers = headers
 	um.fieldInfoMap = csvHeadersLabels
 	um.MismatchedHeaders = mismatchHeaderFields(structInfo.Fields, headers)
 	um.MismatchedStructFields = mismatchStructFields(structInfo.Fields, headers)
@@ -78,7 +95,8 @@ func validate(um *Unmarshaller, s interface{}, headers []string) error {
 }
 
 // unmarshalRow converts a CSV row to a struct, based on CSV struct tags.
-func (um *Unmarshaller) unmarshalRow(row []string) (interface{}, error) {
+// If unmatched is non nil, it is populated with any columns that don't map to a struct field
+func (um *Unmarshaller) unmarshalRow(row []string, unmatched map[string]string) (interface{}, error) {
 	isPointer := false
 	concreteOutType := um.outType
 	if um.outType.Kind() == reflect.Ptr {
@@ -87,10 +105,13 @@ func (um *Unmarshaller) unmarshalRow(row []string) (interface{}, error) {
 	}
 	outValue := createNewOutInner(isPointer, concreteOutType)
 	for j, csvColumnContent := range row {
-		if fieldInfo, ok := um.fieldInfoMap[j]; ok {
+		if j < len(um.fieldInfoMap) && um.fieldInfoMap[j] != nil {
+			fieldInfo := um.fieldInfoMap[j]
 			if err := setInnerField(&outValue, isPointer, fieldInfo.IndexChain, csvColumnContent, fieldInfo.omitEmpty); err != nil { // Set field of struct
 				return nil, fmt.Errorf("cannot assign field at %v to %s through index chain %v: %v", j, outValue.Type(), fieldInfo.IndexChain, err)
 			}
+		} else if unmatched != nil {
+			unmatched[um.Headers[j]] = csvColumnContent
 		}
 	}
 	return outValue.Interface(), nil
diff --git a/vendor/github.com/spf13/pflag/.gitignore b/vendor/github.com/spf13/pflag/.gitignore
new file mode 100644
index 0000000..c3da290
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/.gitignore
@@ -0,0 +1,2 @@
+.idea/*
+
diff --git a/vendor/github.com/spf13/pflag/.travis.yml b/vendor/github.com/spf13/pflag/.travis.yml
new file mode 100644
index 0000000..00d04cb
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/.travis.yml
@@ -0,0 +1,22 @@
+sudo: false
+
+language: go
+
+go:
+  - 1.9.x
+  - 1.10.x
+  - 1.11.x
+  - tip
+
+matrix:
+  allow_failures:
+    - go: tip
+
+install:
+  - go get golang.org/x/lint/golint
+  - export PATH=$GOPATH/bin:$PATH
+  - go install ./...
+
+script:
+  - verify/all.sh -v
+  - go test ./...
diff --git a/vendor/github.com/victorhaggqvist/pflag/LICENSE b/vendor/github.com/spf13/pflag/LICENSE
index 63ed1cf..63ed1cf 100644
--- a/vendor/github.com/victorhaggqvist/pflag/LICENSE
+++ b/vendor/github.com/spf13/pflag/LICENSE
diff --git a/vendor/github.com/spf13/pflag/README.md b/vendor/github.com/spf13/pflag/README.md
new file mode 100644
index 0000000..7eacc5b
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/README.md
@@ -0,0 +1,296 @@
+[![Build Status](https://travis-ci.org/spf13/pflag.svg?branch=master)](https://travis-ci.org/spf13/pflag)
+[![Go Report Card](https://goreportcard.com/badge/github.com/spf13/pflag)](https://goreportcard.com/report/github.com/spf13/pflag)
+[![GoDoc](https://godoc.org/github.com/spf13/pflag?status.svg)](https://godoc.org/github.com/spf13/pflag)
+
+## Description
+
+pflag is a drop-in replacement for Go's flag package, implementing
+POSIX/GNU-style --flags.
+
+pflag is compatible with the [GNU extensions to the POSIX recommendations
+for command-line options][1]. For a more precise description, see the
+"Command-line flag syntax" section below.
+
+[1]: http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
+
+pflag is available under the same style of BSD license as the Go language,
+which can be found in the LICENSE file.
+
+## Installation
+
+pflag is available using the standard `go get` command.
+
+Install by running:
+
+    go get github.com/spf13/pflag
+
+Run tests by running:
+
+    go test github.com/spf13/pflag
+
+## Usage
+
+pflag is a drop-in replacement of Go's native flag package. If you import
+pflag under the name "flag" then all code should continue to function
+with no changes.
+
+``` go
+import flag "github.com/spf13/pflag"
+```
+
+There is one exception to this: if you directly instantiate the Flag struct
+there is one more field "Shorthand" that you will need to set.
+Most code never instantiates this struct directly, and instead uses
+functions such as String(), BoolVar(), and Var(), and is therefore
+unaffected.
+
+Define flags using flag.String(), Bool(), Int(), etc.
+
+This declares an integer flag, -flagname, stored in the pointer ip, with type *int.
+
+``` go
+var ip *int = flag.Int("flagname", 1234, "help message for flagname")
+```
+
+If you like, you can bind the flag to a variable using the Var() functions.
+
+``` go
+var flagvar int
+func init() {
+    flag.IntVar(&flagvar, "flagname", 1234, "help message for flagname")
+}
+```
+
+Or you can create custom flags that satisfy the Value interface (with
+pointer receivers) and couple them to flag parsing by
+
+``` go
+flag.Var(&flagVal, "name", "help message for flagname")
+```
+
+For such flags, the default value is just the initial value of the variable.
+
+After all flags are defined, call
+
+``` go
+flag.Parse()
+```
+
+to parse the command line into the defined flags.
+
+Flags may then be used directly. If you're using the flags themselves,
+they are all pointers; if you bind to variables, they're values.
+
+``` go
+fmt.Println("ip has value ", *ip)
+fmt.Println("flagvar has value ", flagvar)
+```
+
+There are helper functions available to get the value stored in a Flag if you have a FlagSet but find
+it difficult to keep up with all of the pointers in your code.
+If you have a pflag.FlagSet with a flag called 'flagname' of type int you
+can use GetInt() to get the int value. But notice that 'flagname' must exist
+and it must be an int. GetString("flagname") will fail.
+
+``` go
+i, err := flagset.GetInt("flagname")
+```
+
+After parsing, the arguments after the flag are available as the
+slice flag.Args() or individually as flag.Arg(i).
+The arguments are indexed from 0 through flag.NArg()-1.
+
+The pflag package also defines some new functions that are not in flag,
+that give one-letter shorthands for flags. You can use these by appending
+'P' to the name of any function that defines a flag.
+
+``` go
+var ip = flag.IntP("flagname", "f", 1234, "help message")
+var flagvar bool
+func init() {
+	flag.BoolVarP(&flagvar, "boolname", "b", true, "help message")
+}
+flag.VarP(&flagVal, "varname", "v", "help message")
+```
+
+Shorthand letters can be used with single dashes on the command line.
+Boolean shorthand flags can be combined with other shorthand flags.
+
+The default set of command-line flags is controlled by
+top-level functions.  The FlagSet type allows one to define
+independent sets of flags, such as to implement subcommands
+in a command-line interface. The methods of FlagSet are
+analogous to the top-level functions for the command-line
+flag set.
+
+## Setting no option default values for flags
+
+After you create a flag it is possible to set the pflag.NoOptDefVal for
+the given flag. Doing this changes the meaning of the flag slightly. If
+a flag has a NoOptDefVal and the flag is set on the command line without
+an option the flag will be set to the NoOptDefVal. For example given:
+
+``` go
+var ip = flag.IntP("flagname", "f", 1234, "help message")
+flag.Lookup("flagname").NoOptDefVal = "4321"
+```
+
+Would result in something like
+
+| Parsed Arguments | Resulting Value |
+| -------------    | -------------   |
+| --flagname=1357  | ip=1357         |
+| --flagname       | ip=4321         |
+| [nothing]        | ip=1234         |
+
+## Command line flag syntax
+
+```
+--flag    // boolean flags, or flags with no option default values
+--flag x  // only on flags without a default value
+--flag=x
+```
+
+Unlike the flag package, a single dash before an option means something
+different than a double dash. Single dashes signify a series of shorthand
+letters for flags. All but the last shorthand letter must be boolean flags
+or a flag with a default value
+
+```
+// boolean or flags where the 'no option default value' is set
+-f
+-f=true
+-abc
+but
+-b true is INVALID
+
+// non-boolean and flags without a 'no option default value'
+-n 1234
+-n=1234
+-n1234
+
+// mixed
+-abcs "hello"
+-absd="hello"
+-abcs1234
+```
+
+Flag parsing stops after the terminator "--". Unlike the flag package,
+flags can be interspersed with arguments anywhere on the command line
+before this terminator.
+
+Integer flags accept 1234, 0664, 0x1234 and may be negative.
+Boolean flags (in their long form) accept 1, 0, t, f, true, false,
+TRUE, FALSE, True, False.
+Duration flags accept any input valid for time.ParseDuration.
+
+## Mutating or "Normalizing" Flag names
+
+It is possible to set a custom flag name 'normalization function.' It allows flag names to be mutated both when created in the code and when used on the command line to some 'normalized' form. The 'normalized' form is used for comparison. Two examples of using the custom normalization func follow.
+
+**Example #1**: You want -, _, and . in flags to compare the same. aka --my-flag == --my_flag == --my.flag
+
+``` go
+func wordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
+	from := []string{"-", "_"}
+	to := "."
+	for _, sep := range from {
+		name = strings.Replace(name, sep, to, -1)
+	}
+	return pflag.NormalizedName(name)
+}
+
+myFlagSet.SetNormalizeFunc(wordSepNormalizeFunc)
+```
+
+**Example #2**: You want to alias two flags. aka --old-flag-name == --new-flag-name
+
+``` go
+func aliasNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
+	switch name {
+	case "old-flag-name":
+		name = "new-flag-name"
+		break
+	}
+	return pflag.NormalizedName(name)
+}
+
+myFlagSet.SetNormalizeFunc(aliasNormalizeFunc)
+```
+
+## Deprecating a flag or its shorthand
+It is possible to deprecate a flag, or just its shorthand. Deprecating a flag/shorthand hides it from help text and prints a usage message when the deprecated flag/shorthand is used.
+
+**Example #1**: You want to deprecate a flag named "badflag" as well as inform the users what flag they should use instead.
+```go
+// deprecate a flag by specifying its name and a usage message
+flags.MarkDeprecated("badflag", "please use --good-flag instead")
+```
+This hides "badflag" from help text, and prints `Flag --badflag has been deprecated, please use --good-flag instead` when "badflag" is used.
+
+**Example #2**: You want to keep a flag name "noshorthandflag" but deprecate its shortname "n".
+```go
+// deprecate a flag shorthand by specifying its flag name and a usage message
+flags.MarkShorthandDeprecated("noshorthandflag", "please use --noshorthandflag only")
+```
+This hides the shortname "n" from help text, and prints `Flag shorthand -n has been deprecated, please use --noshorthandflag only` when the shorthand "n" is used.
+
+Note that usage message is essential here, and it should not be empty.
+
+## Hidden flags
+It is possible to mark a flag as hidden, meaning it will still function as normal, however will not show up in usage/help text.
+
+**Example**: You have a flag named "secretFlag" that you need for internal use only and don't want it showing up in help text, or for its usage text to be available.
+```go
+// hide a flag by specifying its name
+flags.MarkHidden("secretFlag")
+```
+
+## Disable sorting of flags
+`pflag` allows you to disable sorting of flags for help and usage message.
+
+**Example**:
+```go
+flags.BoolP("verbose", "v", false, "verbose output")
+flags.String("coolflag", "yeaah", "it's really cool flag")
+flags.Int("usefulflag", 777, "sometimes it's very useful")
+flags.SortFlags = false
+flags.PrintDefaults()
+```
+**Output**:
+```
+  -v, --verbose           verbose output
+      --coolflag string   it's really cool flag (default "yeaah")
+      --usefulflag int    sometimes it's very useful (default 777)
+```
+
+
+## Supporting Go flags when using pflag
+In order to support flags defined using Go's `flag` package, they must be added to the `pflag` flagset. This is usually necessary
+to support flags defined by third-party dependencies (e.g. `golang/glog`).
+
+**Example**: You want to add the Go flags to the `CommandLine` flagset
+```go
+import (
+	goflag "flag"
+	flag "github.com/spf13/pflag"
+)
+
+var ip *int = flag.Int("flagname", 1234, "help message for flagname")
+
+func main() {
+	flag.CommandLine.AddGoFlagSet(goflag.CommandLine)
+	flag.Parse()
+}
+```
+
+## More info
+
+You can see the full reference documentation of the pflag package
+[at godoc.org][3], or through go's standard documentation system by
+running `godoc -http=:6060` and browsing to
+[http://localhost:6060/pkg/github.com/spf13/pflag][2] after
+installation.
+
+[2]: http://localhost:6060/pkg/github.com/spf13/pflag
+[3]: http://godoc.org/github.com/spf13/pflag
diff --git a/vendor/github.com/victorhaggqvist/pflag/bool.go b/vendor/github.com/spf13/pflag/bool.go
index 617971a..c4c5c0b 100644
--- a/vendor/github.com/victorhaggqvist/pflag/bool.go
+++ b/vendor/github.com/spf13/pflag/bool.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // optional interface to indicate boolean flags that can be
 // supplied without "=value" text
@@ -26,41 +23,58 @@ func (b *boolValue) Set(s string) error {
 	return err
 }
 
-func (b *boolValue) String() string { return fmt.Sprintf("%v", *b) }
+func (b *boolValue) Type() string {
+	return "bool"
+}
+
+func (b *boolValue) String() string { return strconv.FormatBool(bool(*b)) }
 
 func (b *boolValue) IsBoolFlag() bool { return true }
 
+func boolConv(sval string) (interface{}, error) {
+	return strconv.ParseBool(sval)
+}
+
+// GetBool return the bool value of a flag with the given name
+func (f *FlagSet) GetBool(name string) (bool, error) {
+	val, err := f.getFlagType(name, "bool", boolConv)
+	if err != nil {
+		return false, err
+	}
+	return val.(bool), nil
+}
+
 // BoolVar defines a bool flag with specified name, default value, and usage string.
 // The argument p points to a bool variable in which to store the value of the flag.
 func (f *FlagSet) BoolVar(p *bool, name string, value bool, usage string) {
-	f.VarP(newBoolValue(value, p), name, "", usage)
+	f.BoolVarP(p, name, "", value, usage)
 }
 
-// Like BoolVar, but accepts a shorthand letter that can be used after a single dash.
+// BoolVarP is like BoolVar, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) BoolVarP(p *bool, name, shorthand string, value bool, usage string) {
-	f.VarP(newBoolValue(value, p), name, shorthand, usage)
+	flag := f.VarPF(newBoolValue(value, p), name, shorthand, usage)
+	flag.NoOptDefVal = "true"
 }
 
 // BoolVar defines a bool flag with specified name, default value, and usage string.
 // The argument p points to a bool variable in which to store the value of the flag.
 func BoolVar(p *bool, name string, value bool, usage string) {
-	CommandLine.VarP(newBoolValue(value, p), name, "", usage)
+	BoolVarP(p, name, "", value, usage)
 }
 
-// Like BoolVar, but accepts a shorthand letter that can be used after a single dash.
+// BoolVarP is like BoolVar, but accepts a shorthand letter that can be used after a single dash.
 func BoolVarP(p *bool, name, shorthand string, value bool, usage string) {
-	CommandLine.VarP(newBoolValue(value, p), name, shorthand, usage)
+	flag := CommandLine.VarPF(newBoolValue(value, p), name, shorthand, usage)
+	flag.NoOptDefVal = "true"
 }
 
 // Bool defines a bool flag with specified name, default value, and usage string.
 // The return value is the address of a bool variable that stores the value of the flag.
 func (f *FlagSet) Bool(name string, value bool, usage string) *bool {
-	p := new(bool)
-	f.BoolVarP(p, name, "", value, usage)
-	return p
+	return f.BoolP(name, "", value, usage)
 }
 
-// Like Bool, but accepts a shorthand letter that can be used after a single dash.
+// BoolP is like Bool, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) BoolP(name, shorthand string, value bool, usage string) *bool {
 	p := new(bool)
 	f.BoolVarP(p, name, shorthand, value, usage)
@@ -70,10 +84,11 @@ func (f *FlagSet) BoolP(name, shorthand string, value bool, usage string) *bool
 // Bool defines a bool flag with specified name, default value, and usage string.
 // The return value is the address of a bool variable that stores the value of the flag.
 func Bool(name string, value bool, usage string) *bool {
-	return CommandLine.BoolP(name, "", value, usage)
+	return BoolP(name, "", value, usage)
 }
 
-// Like Bool, but accepts a shorthand letter that can be used after a single dash.
+// BoolP is like Bool, but accepts a shorthand letter that can be used after a single dash.
 func BoolP(name, shorthand string, value bool, usage string) *bool {
-	return CommandLine.BoolP(name, shorthand, value, usage)
+	b := CommandLine.BoolP(name, shorthand, value, usage)
+	return b
 }
diff --git a/vendor/github.com/spf13/pflag/bool_slice.go b/vendor/github.com/spf13/pflag/bool_slice.go
new file mode 100644
index 0000000..3731370
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/bool_slice.go
@@ -0,0 +1,185 @@
+package pflag
+
+import (
+	"io"
+	"strconv"
+	"strings"
+)
+
+// -- boolSlice Value
+type boolSliceValue struct {
+	value   *[]bool
+	changed bool
+}
+
+func newBoolSliceValue(val []bool, p *[]bool) *boolSliceValue {
+	bsv := new(boolSliceValue)
+	bsv.value = p
+	*bsv.value = val
+	return bsv
+}
+
+// Set converts, and assigns, the comma-separated boolean argument string representation as the []bool value of this flag.
+// If Set is called on a flag that already has a []bool assigned, the newly converted values will be appended.
+func (s *boolSliceValue) Set(val string) error {
+
+	// remove all quote characters
+	rmQuote := strings.NewReplacer(`"`, "", `'`, "", "`", "")
+
+	// read flag arguments with CSV parser
+	boolStrSlice, err := readAsCSV(rmQuote.Replace(val))
+	if err != nil && err != io.EOF {
+		return err
+	}
+
+	// parse boolean values into slice
+	out := make([]bool, 0, len(boolStrSlice))
+	for _, boolStr := range boolStrSlice {
+		b, err := strconv.ParseBool(strings.TrimSpace(boolStr))
+		if err != nil {
+			return err
+		}
+		out = append(out, b)
+	}
+
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+
+	s.changed = true
+
+	return nil
+}
+
+// Type returns a string that uniquely represents this flag's type.
+func (s *boolSliceValue) Type() string {
+	return "boolSlice"
+}
+
+// String defines a "native" format for this boolean slice flag value.
+func (s *boolSliceValue) String() string {
+
+	boolStrSlice := make([]string, len(*s.value))
+	for i, b := range *s.value {
+		boolStrSlice[i] = strconv.FormatBool(b)
+	}
+
+	out, _ := writeAsCSV(boolStrSlice)
+
+	return "[" + out + "]"
+}
+
+func (s *boolSliceValue) fromString(val string) (bool, error) {
+	return strconv.ParseBool(val)
+}
+
+func (s *boolSliceValue) toString(val bool) string {
+	return strconv.FormatBool(val)
+}
+
+func (s *boolSliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *boolSliceValue) Replace(val []string) error {
+	out := make([]bool, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *boolSliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func boolSliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []bool{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]bool, len(ss))
+	for i, t := range ss {
+		var err error
+		out[i], err = strconv.ParseBool(t)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return out, nil
+}
+
+// GetBoolSlice returns the []bool value of a flag with the given name.
+func (f *FlagSet) GetBoolSlice(name string) ([]bool, error) {
+	val, err := f.getFlagType(name, "boolSlice", boolSliceConv)
+	if err != nil {
+		return []bool{}, err
+	}
+	return val.([]bool), nil
+}
+
+// BoolSliceVar defines a boolSlice flag with specified name, default value, and usage string.
+// The argument p points to a []bool variable in which to store the value of the flag.
+func (f *FlagSet) BoolSliceVar(p *[]bool, name string, value []bool, usage string) {
+	f.VarP(newBoolSliceValue(value, p), name, "", usage)
+}
+
+// BoolSliceVarP is like BoolSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BoolSliceVarP(p *[]bool, name, shorthand string, value []bool, usage string) {
+	f.VarP(newBoolSliceValue(value, p), name, shorthand, usage)
+}
+
+// BoolSliceVar defines a []bool flag with specified name, default value, and usage string.
+// The argument p points to a []bool variable in which to store the value of the flag.
+func BoolSliceVar(p *[]bool, name string, value []bool, usage string) {
+	CommandLine.VarP(newBoolSliceValue(value, p), name, "", usage)
+}
+
+// BoolSliceVarP is like BoolSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func BoolSliceVarP(p *[]bool, name, shorthand string, value []bool, usage string) {
+	CommandLine.VarP(newBoolSliceValue(value, p), name, shorthand, usage)
+}
+
+// BoolSlice defines a []bool flag with specified name, default value, and usage string.
+// The return value is the address of a []bool variable that stores the value of the flag.
+func (f *FlagSet) BoolSlice(name string, value []bool, usage string) *[]bool {
+	p := []bool{}
+	f.BoolSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// BoolSliceP is like BoolSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BoolSliceP(name, shorthand string, value []bool, usage string) *[]bool {
+	p := []bool{}
+	f.BoolSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// BoolSlice defines a []bool flag with specified name, default value, and usage string.
+// The return value is the address of a []bool variable that stores the value of the flag.
+func BoolSlice(name string, value []bool, usage string) *[]bool {
+	return CommandLine.BoolSliceP(name, "", value, usage)
+}
+
+// BoolSliceP is like BoolSlice, but accepts a shorthand letter that can be used after a single dash.
+func BoolSliceP(name, shorthand string, value []bool, usage string) *[]bool {
+	return CommandLine.BoolSliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/bytes.go b/vendor/github.com/spf13/pflag/bytes.go
new file mode 100644
index 0000000..67d5304
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/bytes.go
@@ -0,0 +1,209 @@
+package pflag
+
+import (
+	"encoding/base64"
+	"encoding/hex"
+	"fmt"
+	"strings"
+)
+
+// BytesHex adapts []byte for use as a flag. Value of flag is HEX encoded
+type bytesHexValue []byte
+
+// String implements pflag.Value.String.
+func (bytesHex bytesHexValue) String() string {
+	return fmt.Sprintf("%X", []byte(bytesHex))
+}
+
+// Set implements pflag.Value.Set.
+func (bytesHex *bytesHexValue) Set(value string) error {
+	bin, err := hex.DecodeString(strings.TrimSpace(value))
+
+	if err != nil {
+		return err
+	}
+
+	*bytesHex = bin
+
+	return nil
+}
+
+// Type implements pflag.Value.Type.
+func (*bytesHexValue) Type() string {
+	return "bytesHex"
+}
+
+func newBytesHexValue(val []byte, p *[]byte) *bytesHexValue {
+	*p = val
+	return (*bytesHexValue)(p)
+}
+
+func bytesHexConv(sval string) (interface{}, error) {
+
+	bin, err := hex.DecodeString(sval)
+
+	if err == nil {
+		return bin, nil
+	}
+
+	return nil, fmt.Errorf("invalid string being converted to Bytes: %s %s", sval, err)
+}
+
+// GetBytesHex return the []byte value of a flag with the given name
+func (f *FlagSet) GetBytesHex(name string) ([]byte, error) {
+	val, err := f.getFlagType(name, "bytesHex", bytesHexConv)
+
+	if err != nil {
+		return []byte{}, err
+	}
+
+	return val.([]byte), nil
+}
+
+// BytesHexVar defines an []byte flag with specified name, default value, and usage string.
+// The argument p points to an []byte variable in which to store the value of the flag.
+func (f *FlagSet) BytesHexVar(p *[]byte, name string, value []byte, usage string) {
+	f.VarP(newBytesHexValue(value, p), name, "", usage)
+}
+
+// BytesHexVarP is like BytesHexVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BytesHexVarP(p *[]byte, name, shorthand string, value []byte, usage string) {
+	f.VarP(newBytesHexValue(value, p), name, shorthand, usage)
+}
+
+// BytesHexVar defines an []byte flag with specified name, default value, and usage string.
+// The argument p points to an []byte variable in which to store the value of the flag.
+func BytesHexVar(p *[]byte, name string, value []byte, usage string) {
+	CommandLine.VarP(newBytesHexValue(value, p), name, "", usage)
+}
+
+// BytesHexVarP is like BytesHexVar, but accepts a shorthand letter that can be used after a single dash.
+func BytesHexVarP(p *[]byte, name, shorthand string, value []byte, usage string) {
+	CommandLine.VarP(newBytesHexValue(value, p), name, shorthand, usage)
+}
+
+// BytesHex defines an []byte flag with specified name, default value, and usage string.
+// The return value is the address of an []byte variable that stores the value of the flag.
+func (f *FlagSet) BytesHex(name string, value []byte, usage string) *[]byte {
+	p := new([]byte)
+	f.BytesHexVarP(p, name, "", value, usage)
+	return p
+}
+
+// BytesHexP is like BytesHex, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BytesHexP(name, shorthand string, value []byte, usage string) *[]byte {
+	p := new([]byte)
+	f.BytesHexVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// BytesHex defines an []byte flag with specified name, default value, and usage string.
+// The return value is the address of an []byte variable that stores the value of the flag.
+func BytesHex(name string, value []byte, usage string) *[]byte {
+	return CommandLine.BytesHexP(name, "", value, usage)
+}
+
+// BytesHexP is like BytesHex, but accepts a shorthand letter that can be used after a single dash.
+func BytesHexP(name, shorthand string, value []byte, usage string) *[]byte {
+	return CommandLine.BytesHexP(name, shorthand, value, usage)
+}
+
+// BytesBase64 adapts []byte for use as a flag. Value of flag is Base64 encoded
+type bytesBase64Value []byte
+
+// String implements pflag.Value.String.
+func (bytesBase64 bytesBase64Value) String() string {
+	return base64.StdEncoding.EncodeToString([]byte(bytesBase64))
+}
+
+// Set implements pflag.Value.Set.
+func (bytesBase64 *bytesBase64Value) Set(value string) error {
+	bin, err := base64.StdEncoding.DecodeString(strings.TrimSpace(value))
+
+	if err != nil {
+		return err
+	}
+
+	*bytesBase64 = bin
+
+	return nil
+}
+
+// Type implements pflag.Value.Type.
+func (*bytesBase64Value) Type() string {
+	return "bytesBase64"
+}
+
+func newBytesBase64Value(val []byte, p *[]byte) *bytesBase64Value {
+	*p = val
+	return (*bytesBase64Value)(p)
+}
+
+func bytesBase64ValueConv(sval string) (interface{}, error) {
+
+	bin, err := base64.StdEncoding.DecodeString(sval)
+	if err == nil {
+		return bin, nil
+	}
+
+	return nil, fmt.Errorf("invalid string being converted to Bytes: %s %s", sval, err)
+}
+
+// GetBytesBase64 return the []byte value of a flag with the given name
+func (f *FlagSet) GetBytesBase64(name string) ([]byte, error) {
+	val, err := f.getFlagType(name, "bytesBase64", bytesBase64ValueConv)
+
+	if err != nil {
+		return []byte{}, err
+	}
+
+	return val.([]byte), nil
+}
+
+// BytesBase64Var defines an []byte flag with specified name, default value, and usage string.
+// The argument p points to an []byte variable in which to store the value of the flag.
+func (f *FlagSet) BytesBase64Var(p *[]byte, name string, value []byte, usage string) {
+	f.VarP(newBytesBase64Value(value, p), name, "", usage)
+}
+
+// BytesBase64VarP is like BytesBase64Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BytesBase64VarP(p *[]byte, name, shorthand string, value []byte, usage string) {
+	f.VarP(newBytesBase64Value(value, p), name, shorthand, usage)
+}
+
+// BytesBase64Var defines an []byte flag with specified name, default value, and usage string.
+// The argument p points to an []byte variable in which to store the value of the flag.
+func BytesBase64Var(p *[]byte, name string, value []byte, usage string) {
+	CommandLine.VarP(newBytesBase64Value(value, p), name, "", usage)
+}
+
+// BytesBase64VarP is like BytesBase64Var, but accepts a shorthand letter that can be used after a single dash.
+func BytesBase64VarP(p *[]byte, name, shorthand string, value []byte, usage string) {
+	CommandLine.VarP(newBytesBase64Value(value, p), name, shorthand, usage)
+}
+
+// BytesBase64 defines an []byte flag with specified name, default value, and usage string.
+// The return value is the address of an []byte variable that stores the value of the flag.
+func (f *FlagSet) BytesBase64(name string, value []byte, usage string) *[]byte {
+	p := new([]byte)
+	f.BytesBase64VarP(p, name, "", value, usage)
+	return p
+}
+
+// BytesBase64P is like BytesBase64, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) BytesBase64P(name, shorthand string, value []byte, usage string) *[]byte {
+	p := new([]byte)
+	f.BytesBase64VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// BytesBase64 defines an []byte flag with specified name, default value, and usage string.
+// The return value is the address of an []byte variable that stores the value of the flag.
+func BytesBase64(name string, value []byte, usage string) *[]byte {
+	return CommandLine.BytesBase64P(name, "", value, usage)
+}
+
+// BytesBase64P is like BytesBase64, but accepts a shorthand letter that can be used after a single dash.
+func BytesBase64P(name, shorthand string, value []byte, usage string) *[]byte {
+	return CommandLine.BytesBase64P(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/count.go b/vendor/github.com/spf13/pflag/count.go
new file mode 100644
index 0000000..a0b2679
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/count.go
@@ -0,0 +1,96 @@
+package pflag
+
+import "strconv"
+
+// -- count Value
+type countValue int
+
+func newCountValue(val int, p *int) *countValue {
+	*p = val
+	return (*countValue)(p)
+}
+
+func (i *countValue) Set(s string) error {
+	// "+1" means that no specific value was passed, so increment
+	if s == "+1" {
+		*i = countValue(*i + 1)
+		return nil
+	}
+	v, err := strconv.ParseInt(s, 0, 0)
+	*i = countValue(v)
+	return err
+}
+
+func (i *countValue) Type() string {
+	return "count"
+}
+
+func (i *countValue) String() string { return strconv.Itoa(int(*i)) }
+
+func countConv(sval string) (interface{}, error) {
+	i, err := strconv.Atoi(sval)
+	if err != nil {
+		return nil, err
+	}
+	return i, nil
+}
+
+// GetCount return the int value of a flag with the given name
+func (f *FlagSet) GetCount(name string) (int, error) {
+	val, err := f.getFlagType(name, "count", countConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int), nil
+}
+
+// CountVar defines a count flag with specified name, default value, and usage string.
+// The argument p points to an int variable in which to store the value of the flag.
+// A count flag will add 1 to its value every time it is found on the command line
+func (f *FlagSet) CountVar(p *int, name string, usage string) {
+	f.CountVarP(p, name, "", usage)
+}
+
+// CountVarP is like CountVar only take a shorthand for the flag name.
+func (f *FlagSet) CountVarP(p *int, name, shorthand string, usage string) {
+	flag := f.VarPF(newCountValue(0, p), name, shorthand, usage)
+	flag.NoOptDefVal = "+1"
+}
+
+// CountVar like CountVar only the flag is placed on the CommandLine instead of a given flag set
+func CountVar(p *int, name string, usage string) {
+	CommandLine.CountVar(p, name, usage)
+}
+
+// CountVarP is like CountVar only take a shorthand for the flag name.
+func CountVarP(p *int, name, shorthand string, usage string) {
+	CommandLine.CountVarP(p, name, shorthand, usage)
+}
+
+// Count defines a count flag with specified name, default value, and usage string.
+// The return value is the address of an int variable that stores the value of the flag.
+// A count flag will add 1 to its value every time it is found on the command line
+func (f *FlagSet) Count(name string, usage string) *int {
+	p := new(int)
+	f.CountVarP(p, name, "", usage)
+	return p
+}
+
+// CountP is like Count only takes a shorthand for the flag name.
+func (f *FlagSet) CountP(name, shorthand string, usage string) *int {
+	p := new(int)
+	f.CountVarP(p, name, shorthand, usage)
+	return p
+}
+
+// Count defines a count flag with specified name, default value, and usage string.
+// The return value is the address of an int variable that stores the value of the flag.
+// A count flag will add 1 to its value evey time it is found on the command line
+func Count(name string, usage string) *int {
+	return CommandLine.CountP(name, "", usage)
+}
+
+// CountP is like Count only takes a shorthand for the flag name.
+func CountP(name, shorthand string, usage string) *int {
+	return CommandLine.CountP(name, shorthand, usage)
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/duration.go b/vendor/github.com/spf13/pflag/duration.go
index db59463..e9debef 100644
--- a/vendor/github.com/victorhaggqvist/pflag/duration.go
+++ b/vendor/github.com/spf13/pflag/duration.go
@@ -1,6 +1,8 @@
 package pflag
 
-import "time"
+import (
+	"time"
+)
 
 // -- time.Duration Value
 type durationValue time.Duration
@@ -16,13 +18,23 @@ func (d *durationValue) Set(s string) error {
 	return err
 }
 
+func (d *durationValue) Type() string {
+	return "duration"
+}
+
 func (d *durationValue) String() string { return (*time.Duration)(d).String() }
 
-// Value is the interface to the dynamic value stored in a flag.
-// (The default value is represented as a string.)
-type Value interface {
-	String() string
-	Set(string) error
+func durationConv(sval string) (interface{}, error) {
+	return time.ParseDuration(sval)
+}
+
+// GetDuration return the duration value of a flag with the given name
+func (f *FlagSet) GetDuration(name string) (time.Duration, error) {
+	val, err := f.getFlagType(name, "duration", durationConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(time.Duration), nil
 }
 
 // DurationVar defines a time.Duration flag with specified name, default value, and usage string.
@@ -31,7 +43,7 @@ func (f *FlagSet) DurationVar(p *time.Duration, name string, value time.Duration
 	f.VarP(newDurationValue(value, p), name, "", usage)
 }
 
-// Like DurationVar, but accepts a shorthand letter that can be used after a single dash.
+// DurationVarP is like DurationVar, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) DurationVarP(p *time.Duration, name, shorthand string, value time.Duration, usage string) {
 	f.VarP(newDurationValue(value, p), name, shorthand, usage)
 }
@@ -42,7 +54,7 @@ func DurationVar(p *time.Duration, name string, value time.Duration, usage strin
 	CommandLine.VarP(newDurationValue(value, p), name, "", usage)
 }
 
-// Like DurationVar, but accepts a shorthand letter that can be used after a single dash.
+// DurationVarP is like DurationVar, but accepts a shorthand letter that can be used after a single dash.
 func DurationVarP(p *time.Duration, name, shorthand string, value time.Duration, usage string) {
 	CommandLine.VarP(newDurationValue(value, p), name, shorthand, usage)
 }
@@ -55,7 +67,7 @@ func (f *FlagSet) Duration(name string, value time.Duration, usage string) *time
 	return p
 }
 
-// Like Duration, but accepts a shorthand letter that can be used after a single dash.
+// DurationP is like Duration, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) DurationP(name, shorthand string, value time.Duration, usage string) *time.Duration {
 	p := new(time.Duration)
 	f.DurationVarP(p, name, shorthand, value, usage)
@@ -68,7 +80,7 @@ func Duration(name string, value time.Duration, usage string) *time.Duration {
 	return CommandLine.DurationP(name, "", value, usage)
 }
 
-// Like Duration, but accepts a shorthand letter that can be used after a single dash.
+// DurationP is like Duration, but accepts a shorthand letter that can be used after a single dash.
 func DurationP(name, shorthand string, value time.Duration, usage string) *time.Duration {
 	return CommandLine.DurationP(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/spf13/pflag/duration_slice.go b/vendor/github.com/spf13/pflag/duration_slice.go
new file mode 100644
index 0000000..badadda
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/duration_slice.go
@@ -0,0 +1,166 @@
+package pflag
+
+import (
+	"fmt"
+	"strings"
+	"time"
+)
+
+// -- durationSlice Value
+type durationSliceValue struct {
+	value   *[]time.Duration
+	changed bool
+}
+
+func newDurationSliceValue(val []time.Duration, p *[]time.Duration) *durationSliceValue {
+	dsv := new(durationSliceValue)
+	dsv.value = p
+	*dsv.value = val
+	return dsv
+}
+
+func (s *durationSliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]time.Duration, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = time.ParseDuration(d)
+		if err != nil {
+			return err
+		}
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *durationSliceValue) Type() string {
+	return "durationSlice"
+}
+
+func (s *durationSliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%s", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func (s *durationSliceValue) fromString(val string) (time.Duration, error) {
+	return time.ParseDuration(val)
+}
+
+func (s *durationSliceValue) toString(val time.Duration) string {
+	return fmt.Sprintf("%s", val)
+}
+
+func (s *durationSliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *durationSliceValue) Replace(val []string) error {
+	out := make([]time.Duration, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *durationSliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func durationSliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []time.Duration{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]time.Duration, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = time.ParseDuration(d)
+		if err != nil {
+			return nil, err
+		}
+
+	}
+	return out, nil
+}
+
+// GetDurationSlice returns the []time.Duration value of a flag with the given name
+func (f *FlagSet) GetDurationSlice(name string) ([]time.Duration, error) {
+	val, err := f.getFlagType(name, "durationSlice", durationSliceConv)
+	if err != nil {
+		return []time.Duration{}, err
+	}
+	return val.([]time.Duration), nil
+}
+
+// DurationSliceVar defines a durationSlice flag with specified name, default value, and usage string.
+// The argument p points to a []time.Duration variable in which to store the value of the flag.
+func (f *FlagSet) DurationSliceVar(p *[]time.Duration, name string, value []time.Duration, usage string) {
+	f.VarP(newDurationSliceValue(value, p), name, "", usage)
+}
+
+// DurationSliceVarP is like DurationSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) DurationSliceVarP(p *[]time.Duration, name, shorthand string, value []time.Duration, usage string) {
+	f.VarP(newDurationSliceValue(value, p), name, shorthand, usage)
+}
+
+// DurationSliceVar defines a duration[] flag with specified name, default value, and usage string.
+// The argument p points to a duration[] variable in which to store the value of the flag.
+func DurationSliceVar(p *[]time.Duration, name string, value []time.Duration, usage string) {
+	CommandLine.VarP(newDurationSliceValue(value, p), name, "", usage)
+}
+
+// DurationSliceVarP is like DurationSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func DurationSliceVarP(p *[]time.Duration, name, shorthand string, value []time.Duration, usage string) {
+	CommandLine.VarP(newDurationSliceValue(value, p), name, shorthand, usage)
+}
+
+// DurationSlice defines a []time.Duration flag with specified name, default value, and usage string.
+// The return value is the address of a []time.Duration variable that stores the value of the flag.
+func (f *FlagSet) DurationSlice(name string, value []time.Duration, usage string) *[]time.Duration {
+	p := []time.Duration{}
+	f.DurationSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// DurationSliceP is like DurationSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) DurationSliceP(name, shorthand string, value []time.Duration, usage string) *[]time.Duration {
+	p := []time.Duration{}
+	f.DurationSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// DurationSlice defines a []time.Duration flag with specified name, default value, and usage string.
+// The return value is the address of a []time.Duration variable that stores the value of the flag.
+func DurationSlice(name string, value []time.Duration, usage string) *[]time.Duration {
+	return CommandLine.DurationSliceP(name, "", value, usage)
+}
+
+// DurationSliceP is like DurationSlice, but accepts a shorthand letter that can be used after a single dash.
+func DurationSliceP(name, shorthand string, value []time.Duration, usage string) *[]time.Duration {
+	return CommandLine.DurationSliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/flag.go b/vendor/github.com/spf13/pflag/flag.go
new file mode 100644
index 0000000..24a5036
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/flag.go
@@ -0,0 +1,1239 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+/*
+Package pflag is a drop-in replacement for Go's flag package, implementing
+POSIX/GNU-style --flags.
+
+pflag is compatible with the GNU extensions to the POSIX recommendations
+for command-line options. See
+http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
+
+Usage:
+
+pflag is a drop-in replacement of Go's native flag package. If you import
+pflag under the name "flag" then all code should continue to function
+with no changes.
+
+	import flag "github.com/spf13/pflag"
+
+There is one exception to this: if you directly instantiate the Flag struct
+there is one more field "Shorthand" that you will need to set.
+Most code never instantiates this struct directly, and instead uses
+functions such as String(), BoolVar(), and Var(), and is therefore
+unaffected.
+
+Define flags using flag.String(), Bool(), Int(), etc.
+
+This declares an integer flag, -flagname, stored in the pointer ip, with type *int.
+	var ip = flag.Int("flagname", 1234, "help message for flagname")
+If you like, you can bind the flag to a variable using the Var() functions.
+	var flagvar int
+	func init() {
+		flag.IntVar(&flagvar, "flagname", 1234, "help message for flagname")
+	}
+Or you can create custom flags that satisfy the Value interface (with
+pointer receivers) and couple them to flag parsing by
+	flag.Var(&flagVal, "name", "help message for flagname")
+For such flags, the default value is just the initial value of the variable.
+
+After all flags are defined, call
+	flag.Parse()
+to parse the command line into the defined flags.
+
+Flags may then be used directly. If you're using the flags themselves,
+they are all pointers; if you bind to variables, they're values.
+	fmt.Println("ip has value ", *ip)
+	fmt.Println("flagvar has value ", flagvar)
+
+After parsing, the arguments after the flag are available as the
+slice flag.Args() or individually as flag.Arg(i).
+The arguments are indexed from 0 through flag.NArg()-1.
+
+The pflag package also defines some new functions that are not in flag,
+that give one-letter shorthands for flags. You can use these by appending
+'P' to the name of any function that defines a flag.
+	var ip = flag.IntP("flagname", "f", 1234, "help message")
+	var flagvar bool
+	func init() {
+		flag.BoolVarP(&flagvar, "boolname", "b", true, "help message")
+	}
+	flag.VarP(&flagval, "varname", "v", "help message")
+Shorthand letters can be used with single dashes on the command line.
+Boolean shorthand flags can be combined with other shorthand flags.
+
+Command line flag syntax:
+	--flag    // boolean flags only
+	--flag=x
+
+Unlike the flag package, a single dash before an option means something
+different than a double dash. Single dashes signify a series of shorthand
+letters for flags. All but the last shorthand letter must be boolean flags.
+	// boolean flags
+	-f
+	-abc
+	// non-boolean flags
+	-n 1234
+	-Ifile
+	// mixed
+	-abcs "hello"
+	-abcn1234
+
+Flag parsing stops after the terminator "--". Unlike the flag package,
+flags can be interspersed with arguments anywhere on the command line
+before this terminator.
+
+Integer flags accept 1234, 0664, 0x1234 and may be negative.
+Boolean flags (in their long form) accept 1, 0, t, f, true, false,
+TRUE, FALSE, True, False.
+Duration flags accept any input valid for time.ParseDuration.
+
+The default set of command-line flags is controlled by
+top-level functions.  The FlagSet type allows one to define
+independent sets of flags, such as to implement subcommands
+in a command-line interface. The methods of FlagSet are
+analogous to the top-level functions for the command-line
+flag set.
+*/
+package pflag
+
+import (
+	"bytes"
+	"errors"
+	goflag "flag"
+	"fmt"
+	"io"
+	"os"
+	"sort"
+	"strings"
+)
+
+// ErrHelp is the error returned if the flag -help is invoked but no such flag is defined.
+var ErrHelp = errors.New("pflag: help requested")
+
+// ErrorHandling defines how to handle flag parsing errors.
+type ErrorHandling int
+
+const (
+	// ContinueOnError will return an err from Parse() if an error is found
+	ContinueOnError ErrorHandling = iota
+	// ExitOnError will call os.Exit(2) if an error is found when parsing
+	ExitOnError
+	// PanicOnError will panic() if an error is found when parsing flags
+	PanicOnError
+)
+
+// ParseErrorsWhitelist defines the parsing errors that can be ignored
+type ParseErrorsWhitelist struct {
+	// UnknownFlags will ignore unknown flags errors and continue parsing rest of the flags
+	UnknownFlags bool
+}
+
+// NormalizedName is a flag name that has been normalized according to rules
+// for the FlagSet (e.g. making '-' and '_' equivalent).
+type NormalizedName string
+
+// A FlagSet represents a set of defined flags.
+type FlagSet struct {
+	// Usage is the function called when an error occurs while parsing flags.
+	// The field is a function (not a method) that may be changed to point to
+	// a custom error handler.
+	Usage func()
+
+	// SortFlags is used to indicate, if user wants to have sorted flags in
+	// help/usage messages.
+	SortFlags bool
+
+	// ParseErrorsWhitelist is used to configure a whitelist of errors
+	ParseErrorsWhitelist ParseErrorsWhitelist
+
+	name              string
+	parsed            bool
+	actual            map[NormalizedName]*Flag
+	orderedActual     []*Flag
+	sortedActual      []*Flag
+	formal            map[NormalizedName]*Flag
+	orderedFormal     []*Flag
+	sortedFormal      []*Flag
+	shorthands        map[byte]*Flag
+	args              []string // arguments after flags
+	argsLenAtDash     int      // len(args) when a '--' was located when parsing, or -1 if no --
+	errorHandling     ErrorHandling
+	output            io.Writer // nil means stderr; use out() accessor
+	interspersed      bool      // allow interspersed option/non-option args
+	normalizeNameFunc func(f *FlagSet, name string) NormalizedName
+
+	addedGoFlagSets []*goflag.FlagSet
+}
+
+// A Flag represents the state of a flag.
+type Flag struct {
+	Name                string              // name as it appears on command line
+	Shorthand           string              // one-letter abbreviated flag
+	Usage               string              // help message
+	Value               Value               // value as set
+	DefValue            string              // default value (as text); for usage message
+	Changed             bool                // If the user set the value (or if left to default)
+	NoOptDefVal         string              // default value (as text); if the flag is on the command line without any options
+	Deprecated          string              // If this flag is deprecated, this string is the new or now thing to use
+	Hidden              bool                // used by cobra.Command to allow flags to be hidden from help/usage text
+	ShorthandDeprecated string              // If the shorthand of this flag is deprecated, this string is the new or now thing to use
+	Annotations         map[string][]string // used by cobra.Command bash autocomple code
+}
+
+// Value is the interface to the dynamic value stored in a flag.
+// (The default value is represented as a string.)
+type Value interface {
+	String() string
+	Set(string) error
+	Type() string
+}
+
+// SliceValue is a secondary interface to all flags which hold a list
+// of values.  This allows full control over the value of list flags,
+// and avoids complicated marshalling and unmarshalling to csv.
+type SliceValue interface {
+	// Append adds the specified value to the end of the flag value list.
+	Append(string) error
+	// Replace will fully overwrite any data currently in the flag value list.
+	Replace([]string) error
+	// GetSlice returns the flag value list as an array of strings.
+	GetSlice() []string
+}
+
+// sortFlags returns the flags as a slice in lexicographical sorted order.
+func sortFlags(flags map[NormalizedName]*Flag) []*Flag {
+	list := make(sort.StringSlice, len(flags))
+	i := 0
+	for k := range flags {
+		list[i] = string(k)
+		i++
+	}
+	list.Sort()
+	result := make([]*Flag, len(list))
+	for i, name := range list {
+		result[i] = flags[NormalizedName(name)]
+	}
+	return result
+}
+
+// SetNormalizeFunc allows you to add a function which can translate flag names.
+// Flags added to the FlagSet will be translated and then when anything tries to
+// look up the flag that will also be translated. So it would be possible to create
+// a flag named "getURL" and have it translated to "geturl".  A user could then pass
+// "--getUrl" which may also be translated to "geturl" and everything will work.
+func (f *FlagSet) SetNormalizeFunc(n func(f *FlagSet, name string) NormalizedName) {
+	f.normalizeNameFunc = n
+	f.sortedFormal = f.sortedFormal[:0]
+	for fname, flag := range f.formal {
+		nname := f.normalizeFlagName(flag.Name)
+		if fname == nname {
+			continue
+		}
+		flag.Name = string(nname)
+		delete(f.formal, fname)
+		f.formal[nname] = flag
+		if _, set := f.actual[fname]; set {
+			delete(f.actual, fname)
+			f.actual[nname] = flag
+		}
+	}
+}
+
+// GetNormalizeFunc returns the previously set NormalizeFunc of a function which
+// does no translation, if not set previously.
+func (f *FlagSet) GetNormalizeFunc() func(f *FlagSet, name string) NormalizedName {
+	if f.normalizeNameFunc != nil {
+		return f.normalizeNameFunc
+	}
+	return func(f *FlagSet, name string) NormalizedName { return NormalizedName(name) }
+}
+
+func (f *FlagSet) normalizeFlagName(name string) NormalizedName {
+	n := f.GetNormalizeFunc()
+	return n(f, name)
+}
+
+func (f *FlagSet) out() io.Writer {
+	if f.output == nil {
+		return os.Stderr
+	}
+	return f.output
+}
+
+// SetOutput sets the destination for usage and error messages.
+// If output is nil, os.Stderr is used.
+func (f *FlagSet) SetOutput(output io.Writer) {
+	f.output = output
+}
+
+// VisitAll visits the flags in lexicographical order or
+// in primordial order if f.SortFlags is false, calling fn for each.
+// It visits all flags, even those not set.
+func (f *FlagSet) VisitAll(fn func(*Flag)) {
+	if len(f.formal) == 0 {
+		return
+	}
+
+	var flags []*Flag
+	if f.SortFlags {
+		if len(f.formal) != len(f.sortedFormal) {
+			f.sortedFormal = sortFlags(f.formal)
+		}
+		flags = f.sortedFormal
+	} else {
+		flags = f.orderedFormal
+	}
+
+	for _, flag := range flags {
+		fn(flag)
+	}
+}
+
+// HasFlags returns a bool to indicate if the FlagSet has any flags defined.
+func (f *FlagSet) HasFlags() bool {
+	return len(f.formal) > 0
+}
+
+// HasAvailableFlags returns a bool to indicate if the FlagSet has any flags
+// that are not hidden.
+func (f *FlagSet) HasAvailableFlags() bool {
+	for _, flag := range f.formal {
+		if !flag.Hidden {
+			return true
+		}
+	}
+	return false
+}
+
+// VisitAll visits the command-line flags in lexicographical order or
+// in primordial order if f.SortFlags is false, calling fn for each.
+// It visits all flags, even those not set.
+func VisitAll(fn func(*Flag)) {
+	CommandLine.VisitAll(fn)
+}
+
+// Visit visits the flags in lexicographical order or
+// in primordial order if f.SortFlags is false, calling fn for each.
+// It visits only those flags that have been set.
+func (f *FlagSet) Visit(fn func(*Flag)) {
+	if len(f.actual) == 0 {
+		return
+	}
+
+	var flags []*Flag
+	if f.SortFlags {
+		if len(f.actual) != len(f.sortedActual) {
+			f.sortedActual = sortFlags(f.actual)
+		}
+		flags = f.sortedActual
+	} else {
+		flags = f.orderedActual
+	}
+
+	for _, flag := range flags {
+		fn(flag)
+	}
+}
+
+// Visit visits the command-line flags in lexicographical order or
+// in primordial order if f.SortFlags is false, calling fn for each.
+// It visits only those flags that have been set.
+func Visit(fn func(*Flag)) {
+	CommandLine.Visit(fn)
+}
+
+// Lookup returns the Flag structure of the named flag, returning nil if none exists.
+func (f *FlagSet) Lookup(name string) *Flag {
+	return f.lookup(f.normalizeFlagName(name))
+}
+
+// ShorthandLookup returns the Flag structure of the short handed flag,
+// returning nil if none exists.
+// It panics, if len(name) > 1.
+func (f *FlagSet) ShorthandLookup(name string) *Flag {
+	if name == "" {
+		return nil
+	}
+	if len(name) > 1 {
+		msg := fmt.Sprintf("can not look up shorthand which is more than one ASCII character: %q", name)
+		fmt.Fprintf(f.out(), msg)
+		panic(msg)
+	}
+	c := name[0]
+	return f.shorthands[c]
+}
+
+// lookup returns the Flag structure of the named flag, returning nil if none exists.
+func (f *FlagSet) lookup(name NormalizedName) *Flag {
+	return f.formal[name]
+}
+
+// func to return a given type for a given flag name
+func (f *FlagSet) getFlagType(name string, ftype string, convFunc func(sval string) (interface{}, error)) (interface{}, error) {
+	flag := f.Lookup(name)
+	if flag == nil {
+		err := fmt.Errorf("flag accessed but not defined: %s", name)
+		return nil, err
+	}
+
+	if flag.Value.Type() != ftype {
+		err := fmt.Errorf("trying to get %s value of flag of type %s", ftype, flag.Value.Type())
+		return nil, err
+	}
+
+	sval := flag.Value.String()
+	result, err := convFunc(sval)
+	if err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
+// ArgsLenAtDash will return the length of f.Args at the moment when a -- was
+// found during arg parsing. This allows your program to know which args were
+// before the -- and which came after.
+func (f *FlagSet) ArgsLenAtDash() int {
+	return f.argsLenAtDash
+}
+
+// MarkDeprecated indicated that a flag is deprecated in your program. It will
+// continue to function but will not show up in help or usage messages. Using
+// this flag will also print the given usageMessage.
+func (f *FlagSet) MarkDeprecated(name string, usageMessage string) error {
+	flag := f.Lookup(name)
+	if flag == nil {
+		return fmt.Errorf("flag %q does not exist", name)
+	}
+	if usageMessage == "" {
+		return fmt.Errorf("deprecated message for flag %q must be set", name)
+	}
+	flag.Deprecated = usageMessage
+	flag.Hidden = true
+	return nil
+}
+
+// MarkShorthandDeprecated will mark the shorthand of a flag deprecated in your
+// program. It will continue to function but will not show up in help or usage
+// messages. Using this flag will also print the given usageMessage.
+func (f *FlagSet) MarkShorthandDeprecated(name string, usageMessage string) error {
+	flag := f.Lookup(name)
+	if flag == nil {
+		return fmt.Errorf("flag %q does not exist", name)
+	}
+	if usageMessage == "" {
+		return fmt.Errorf("deprecated message for flag %q must be set", name)
+	}
+	flag.ShorthandDeprecated = usageMessage
+	return nil
+}
+
+// MarkHidden sets a flag to 'hidden' in your program. It will continue to
+// function but will not show up in help or usage messages.
+func (f *FlagSet) MarkHidden(name string) error {
+	flag := f.Lookup(name)
+	if flag == nil {
+		return fmt.Errorf("flag %q does not exist", name)
+	}
+	flag.Hidden = true
+	return nil
+}
+
+// Lookup returns the Flag structure of the named command-line flag,
+// returning nil if none exists.
+func Lookup(name string) *Flag {
+	return CommandLine.Lookup(name)
+}
+
+// ShorthandLookup returns the Flag structure of the short handed flag,
+// returning nil if none exists.
+func ShorthandLookup(name string) *Flag {
+	return CommandLine.ShorthandLookup(name)
+}
+
+// Set sets the value of the named flag.
+func (f *FlagSet) Set(name, value string) error {
+	normalName := f.normalizeFlagName(name)
+	flag, ok := f.formal[normalName]
+	if !ok {
+		return fmt.Errorf("no such flag -%v", name)
+	}
+
+	err := flag.Value.Set(value)
+	if err != nil {
+		var flagName string
+		if flag.Shorthand != "" && flag.ShorthandDeprecated == "" {
+			flagName = fmt.Sprintf("-%s, --%s", flag.Shorthand, flag.Name)
+		} else {
+			flagName = fmt.Sprintf("--%s", flag.Name)
+		}
+		return fmt.Errorf("invalid argument %q for %q flag: %v", value, flagName, err)
+	}
+
+	if !flag.Changed {
+		if f.actual == nil {
+			f.actual = make(map[NormalizedName]*Flag)
+		}
+		f.actual[normalName] = flag
+		f.orderedActual = append(f.orderedActual, flag)
+
+		flag.Changed = true
+	}
+
+	if flag.Deprecated != "" {
+		fmt.Fprintf(f.out(), "Flag --%s has been deprecated, %s\n", flag.Name, flag.Deprecated)
+	}
+	return nil
+}
+
+// SetAnnotation allows one to set arbitrary annotations on a flag in the FlagSet.
+// This is sometimes used by spf13/cobra programs which want to generate additional
+// bash completion information.
+func (f *FlagSet) SetAnnotation(name, key string, values []string) error {
+	normalName := f.normalizeFlagName(name)
+	flag, ok := f.formal[normalName]
+	if !ok {
+		return fmt.Errorf("no such flag -%v", name)
+	}
+	if flag.Annotations == nil {
+		flag.Annotations = map[string][]string{}
+	}
+	flag.Annotations[key] = values
+	return nil
+}
+
+// Changed returns true if the flag was explicitly set during Parse() and false
+// otherwise
+func (f *FlagSet) Changed(name string) bool {
+	flag := f.Lookup(name)
+	// If a flag doesn't exist, it wasn't changed....
+	if flag == nil {
+		return false
+	}
+	return flag.Changed
+}
+
+// Set sets the value of the named command-line flag.
+func Set(name, value string) error {
+	return CommandLine.Set(name, value)
+}
+
+// PrintDefaults prints, to standard error unless configured
+// otherwise, the default values of all defined flags in the set.
+func (f *FlagSet) PrintDefaults() {
+	usages := f.FlagUsages()
+	fmt.Fprint(f.out(), usages)
+}
+
+// defaultIsZeroValue returns true if the default value for this flag represents
+// a zero value.
+func (f *Flag) defaultIsZeroValue() bool {
+	switch f.Value.(type) {
+	case boolFlag:
+		return f.DefValue == "false"
+	case *durationValue:
+		// Beginning in Go 1.7, duration zero values are "0s"
+		return f.DefValue == "0" || f.DefValue == "0s"
+	case *intValue, *int8Value, *int32Value, *int64Value, *uintValue, *uint8Value, *uint16Value, *uint32Value, *uint64Value, *countValue, *float32Value, *float64Value:
+		return f.DefValue == "0"
+	case *stringValue:
+		return f.DefValue == ""
+	case *ipValue, *ipMaskValue, *ipNetValue:
+		return f.DefValue == "<nil>"
+	case *intSliceValue, *stringSliceValue, *stringArrayValue:
+		return f.DefValue == "[]"
+	default:
+		switch f.Value.String() {
+		case "false":
+			return true
+		case "<nil>":
+			return true
+		case "":
+			return true
+		case "0":
+			return true
+		}
+		return false
+	}
+}
+
+// UnquoteUsage extracts a back-quoted name from the usage
+// string for a flag and returns it and the un-quoted usage.
+// Given "a `name` to show" it returns ("name", "a name to show").
+// If there are no back quotes, the name is an educated guess of the
+// type of the flag's value, or the empty string if the flag is boolean.
+func UnquoteUsage(flag *Flag) (name string, usage string) {
+	// Look for a back-quoted name, but avoid the strings package.
+	usage = flag.Usage
+	for i := 0; i < len(usage); i++ {
+		if usage[i] == '`' {
+			for j := i + 1; j < len(usage); j++ {
+				if usage[j] == '`' {
+					name = usage[i+1 : j]
+					usage = usage[:i] + name + usage[j+1:]
+					return name, usage
+				}
+			}
+			break // Only one back quote; use type name.
+		}
+	}
+
+	name = flag.Value.Type()
+	switch name {
+	case "bool":
+		name = ""
+	case "float64":
+		name = "float"
+	case "int64":
+		name = "int"
+	case "uint64":
+		name = "uint"
+	case "stringSlice":
+		name = "strings"
+	case "intSlice":
+		name = "ints"
+	case "uintSlice":
+		name = "uints"
+	case "boolSlice":
+		name = "bools"
+	}
+
+	return
+}
+
+// Splits the string `s` on whitespace into an initial substring up to
+// `i` runes in length and the remainder. Will go `slop` over `i` if
+// that encompasses the entire string (which allows the caller to
+// avoid short orphan words on the final line).
+func wrapN(i, slop int, s string) (string, string) {
+	if i+slop > len(s) {
+		return s, ""
+	}
+
+	w := strings.LastIndexAny(s[:i], " \t\n")
+	if w <= 0 {
+		return s, ""
+	}
+	nlPos := strings.LastIndex(s[:i], "\n")
+	if nlPos > 0 && nlPos < w {
+		return s[:nlPos], s[nlPos+1:]
+	}
+	return s[:w], s[w+1:]
+}
+
+// Wraps the string `s` to a maximum width `w` with leading indent
+// `i`. The first line is not indented (this is assumed to be done by
+// caller). Pass `w` == 0 to do no wrapping
+func wrap(i, w int, s string) string {
+	if w == 0 {
+		return strings.Replace(s, "\n", "\n"+strings.Repeat(" ", i), -1)
+	}
+
+	// space between indent i and end of line width w into which
+	// we should wrap the text.
+	wrap := w - i
+
+	var r, l string
+
+	// Not enough space for sensible wrapping. Wrap as a block on
+	// the next line instead.
+	if wrap < 24 {
+		i = 16
+		wrap = w - i
+		r += "\n" + strings.Repeat(" ", i)
+	}
+	// If still not enough space then don't even try to wrap.
+	if wrap < 24 {
+		return strings.Replace(s, "\n", r, -1)
+	}
+
+	// Try to avoid short orphan words on the final line, by
+	// allowing wrapN to go a bit over if that would fit in the
+	// remainder of the line.
+	slop := 5
+	wrap = wrap - slop
+
+	// Handle first line, which is indented by the caller (or the
+	// special case above)
+	l, s = wrapN(wrap, slop, s)
+	r = r + strings.Replace(l, "\n", "\n"+strings.Repeat(" ", i), -1)
+
+	// Now wrap the rest
+	for s != "" {
+		var t string
+
+		t, s = wrapN(wrap, slop, s)
+		r = r + "\n" + strings.Repeat(" ", i) + strings.Replace(t, "\n", "\n"+strings.Repeat(" ", i), -1)
+	}
+
+	return r
+
+}
+
+// FlagUsagesWrapped returns a string containing the usage information
+// for all flags in the FlagSet. Wrapped to `cols` columns (0 for no
+// wrapping)
+func (f *FlagSet) FlagUsagesWrapped(cols int) string {
+	buf := new(bytes.Buffer)
+
+	lines := make([]string, 0, len(f.formal))
+
+	maxlen := 0
+	f.VisitAll(func(flag *Flag) {
+		if flag.Hidden {
+			return
+		}
+
+		line := ""
+		if flag.Shorthand != "" && flag.ShorthandDeprecated == "" {
+			line = fmt.Sprintf("  -%s, --%s", flag.Shorthand, flag.Name)
+		} else {
+			line = fmt.Sprintf("      --%s", flag.Name)
+		}
+
+		varname, usage := UnquoteUsage(flag)
+		if varname != "" {
+			line += " " + varname
+		}
+		if flag.NoOptDefVal != "" {
+			switch flag.Value.Type() {
+			case "string":
+				line += fmt.Sprintf("[=\"%s\"]", flag.NoOptDefVal)
+			case "bool":
+				if flag.NoOptDefVal != "true" {
+					line += fmt.Sprintf("[=%s]", flag.NoOptDefVal)
+				}
+			case "count":
+				if flag.NoOptDefVal != "+1" {
+					line += fmt.Sprintf("[=%s]", flag.NoOptDefVal)
+				}
+			default:
+				line += fmt.Sprintf("[=%s]", flag.NoOptDefVal)
+			}
+		}
+
+		// This special character will be replaced with spacing once the
+		// correct alignment is calculated
+		line += "\x00"
+		if len(line) > maxlen {
+			maxlen = len(line)
+		}
+
+		line += usage
+		if !flag.defaultIsZeroValue() {
+			if flag.Value.Type() == "string" {
+				line += fmt.Sprintf(" (default %q)", flag.DefValue)
+			} else {
+				line += fmt.Sprintf(" (default %s)", flag.DefValue)
+			}
+		}
+		if len(flag.Deprecated) != 0 {
+			line += fmt.Sprintf(" (DEPRECATED: %s)", flag.Deprecated)
+		}
+
+		lines = append(lines, line)
+	})
+
+	for _, line := range lines {
+		sidx := strings.Index(line, "\x00")
+		spacing := strings.Repeat(" ", maxlen-sidx)
+		// maxlen + 2 comes from + 1 for the \x00 and + 1 for the (deliberate) off-by-one in maxlen-sidx
+		fmt.Fprintln(buf, line[:sidx], spacing, wrap(maxlen+2, cols, line[sidx+1:]))
+	}
+
+	return buf.String()
+}
+
+// FlagUsages returns a string containing the usage information for all flags in
+// the FlagSet
+func (f *FlagSet) FlagUsages() string {
+	return f.FlagUsagesWrapped(0)
+}
+
+// PrintDefaults prints to standard error the default values of all defined command-line flags.
+func PrintDefaults() {
+	CommandLine.PrintDefaults()
+}
+
+// defaultUsage is the default function to print a usage message.
+func defaultUsage(f *FlagSet) {
+	fmt.Fprintf(f.out(), "Usage of %s:\n", f.name)
+	f.PrintDefaults()
+}
+
+// NOTE: Usage is not just defaultUsage(CommandLine)
+// because it serves (via godoc flag Usage) as the example
+// for how to write your own usage function.
+
+// Usage prints to standard error a usage message documenting all defined command-line flags.
+// The function is a variable that may be changed to point to a custom function.
+// By default it prints a simple header and calls PrintDefaults; for details about the
+// format of the output and how to control it, see the documentation for PrintDefaults.
+var Usage = func() {
+	fmt.Fprintf(os.Stderr, "Usage of %s:\n", os.Args[0])
+	PrintDefaults()
+}
+
+// NFlag returns the number of flags that have been set.
+func (f *FlagSet) NFlag() int { return len(f.actual) }
+
+// NFlag returns the number of command-line flags that have been set.
+func NFlag() int { return len(CommandLine.actual) }
+
+// Arg returns the i'th argument.  Arg(0) is the first remaining argument
+// after flags have been processed.
+func (f *FlagSet) Arg(i int) string {
+	if i < 0 || i >= len(f.args) {
+		return ""
+	}
+	return f.args[i]
+}
+
+// Arg returns the i'th command-line argument.  Arg(0) is the first remaining argument
+// after flags have been processed.
+func Arg(i int) string {
+	return CommandLine.Arg(i)
+}
+
+// NArg is the number of arguments remaining after flags have been processed.
+func (f *FlagSet) NArg() int { return len(f.args) }
+
+// NArg is the number of arguments remaining after flags have been processed.
+func NArg() int { return len(CommandLine.args) }
+
+// Args returns the non-flag arguments.
+func (f *FlagSet) Args() []string { return f.args }
+
+// Args returns the non-flag command-line arguments.
+func Args() []string { return CommandLine.args }
+
+// Var defines a flag with the specified name and usage string. The type and
+// value of the flag are represented by the first argument, of type Value, which
+// typically holds a user-defined implementation of Value. For instance, the
+// caller could create a flag that turns a comma-separated string into a slice
+// of strings by giving the slice the methods of Value; in particular, Set would
+// decompose the comma-separated string into the slice.
+func (f *FlagSet) Var(value Value, name string, usage string) {
+	f.VarP(value, name, "", usage)
+}
+
+// VarPF is like VarP, but returns the flag created
+func (f *FlagSet) VarPF(value Value, name, shorthand, usage string) *Flag {
+	// Remember the default value as a string; it won't change.
+	flag := &Flag{
+		Name:      name,
+		Shorthand: shorthand,
+		Usage:     usage,
+		Value:     value,
+		DefValue:  value.String(),
+	}
+	f.AddFlag(flag)
+	return flag
+}
+
+// VarP is like Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) VarP(value Value, name, shorthand, usage string) {
+	f.VarPF(value, name, shorthand, usage)
+}
+
+// AddFlag will add the flag to the FlagSet
+func (f *FlagSet) AddFlag(flag *Flag) {
+	normalizedFlagName := f.normalizeFlagName(flag.Name)
+
+	_, alreadyThere := f.formal[normalizedFlagName]
+	if alreadyThere {
+		msg := fmt.Sprintf("%s flag redefined: %s", f.name, flag.Name)
+		fmt.Fprintln(f.out(), msg)
+		panic(msg) // Happens only if flags are declared with identical names
+	}
+	if f.formal == nil {
+		f.formal = make(map[NormalizedName]*Flag)
+	}
+
+	flag.Name = string(normalizedFlagName)
+	f.formal[normalizedFlagName] = flag
+	f.orderedFormal = append(f.orderedFormal, flag)
+
+	if flag.Shorthand == "" {
+		return
+	}
+	if len(flag.Shorthand) > 1 {
+		msg := fmt.Sprintf("%q shorthand is more than one ASCII character", flag.Shorthand)
+		fmt.Fprintf(f.out(), msg)
+		panic(msg)
+	}
+	if f.shorthands == nil {
+		f.shorthands = make(map[byte]*Flag)
+	}
+	c := flag.Shorthand[0]
+	used, alreadyThere := f.shorthands[c]
+	if alreadyThere {
+		msg := fmt.Sprintf("unable to redefine %q shorthand in %q flagset: it's already used for %q flag", c, f.name, used.Name)
+		fmt.Fprintf(f.out(), msg)
+		panic(msg)
+	}
+	f.shorthands[c] = flag
+}
+
+// AddFlagSet adds one FlagSet to another. If a flag is already present in f
+// the flag from newSet will be ignored.
+func (f *FlagSet) AddFlagSet(newSet *FlagSet) {
+	if newSet == nil {
+		return
+	}
+	newSet.VisitAll(func(flag *Flag) {
+		if f.Lookup(flag.Name) == nil {
+			f.AddFlag(flag)
+		}
+	})
+}
+
+// Var defines a flag with the specified name and usage string. The type and
+// value of the flag are represented by the first argument, of type Value, which
+// typically holds a user-defined implementation of Value. For instance, the
+// caller could create a flag that turns a comma-separated string into a slice
+// of strings by giving the slice the methods of Value; in particular, Set would
+// decompose the comma-separated string into the slice.
+func Var(value Value, name string, usage string) {
+	CommandLine.VarP(value, name, "", usage)
+}
+
+// VarP is like Var, but accepts a shorthand letter that can be used after a single dash.
+func VarP(value Value, name, shorthand, usage string) {
+	CommandLine.VarP(value, name, shorthand, usage)
+}
+
+// failf prints to standard error a formatted error and usage message and
+// returns the error.
+func (f *FlagSet) failf(format string, a ...interface{}) error {
+	err := fmt.Errorf(format, a...)
+	if f.errorHandling != ContinueOnError {
+		fmt.Fprintln(f.out(), err)
+		f.usage()
+	}
+	return err
+}
+
+// usage calls the Usage method for the flag set, or the usage function if
+// the flag set is CommandLine.
+func (f *FlagSet) usage() {
+	if f == CommandLine {
+		Usage()
+	} else if f.Usage == nil {
+		defaultUsage(f)
+	} else {
+		f.Usage()
+	}
+}
+
+//--unknown (args will be empty)
+//--unknown --next-flag ... (args will be --next-flag ...)
+//--unknown arg ... (args will be arg ...)
+func stripUnknownFlagValue(args []string) []string {
+	if len(args) == 0 {
+		//--unknown
+		return args
+	}
+
+	first := args[0]
+	if len(first) > 0 && first[0] == '-' {
+		//--unknown --next-flag ...
+		return args
+	}
+
+	//--unknown arg ... (args will be arg ...)
+	if len(args) > 1 {
+		return args[1:]
+	}
+	return nil
+}
+
+func (f *FlagSet) parseLongArg(s string, args []string, fn parseFunc) (a []string, err error) {
+	a = args
+	name := s[2:]
+	if len(name) == 0 || name[0] == '-' || name[0] == '=' {
+		err = f.failf("bad flag syntax: %s", s)
+		return
+	}
+
+	split := strings.SplitN(name, "=", 2)
+	name = split[0]
+	flag, exists := f.formal[f.normalizeFlagName(name)]
+
+	if !exists {
+		switch {
+		case name == "help":
+			f.usage()
+			return a, ErrHelp
+		case f.ParseErrorsWhitelist.UnknownFlags:
+			// --unknown=unknownval arg ...
+			// we do not want to lose arg in this case
+			if len(split) >= 2 {
+				return a, nil
+			}
+
+			return stripUnknownFlagValue(a), nil
+		default:
+			err = f.failf("unknown flag: --%s", name)
+			return
+		}
+	}
+
+	var value string
+	if len(split) == 2 {
+		// '--flag=arg'
+		value = split[1]
+	} else if flag.NoOptDefVal != "" {
+		// '--flag' (arg was optional)
+		value = flag.NoOptDefVal
+	} else if len(a) > 0 {
+		// '--flag arg'
+		value = a[0]
+		a = a[1:]
+	} else {
+		// '--flag' (arg was required)
+		err = f.failf("flag needs an argument: %s", s)
+		return
+	}
+
+	err = fn(flag, value)
+	if err != nil {
+		f.failf(err.Error())
+	}
+	return
+}
+
+func (f *FlagSet) parseSingleShortArg(shorthands string, args []string, fn parseFunc) (outShorts string, outArgs []string, err error) {
+	outArgs = args
+
+	if strings.HasPrefix(shorthands, "test.") {
+		return
+	}
+
+	outShorts = shorthands[1:]
+	c := shorthands[0]
+
+	flag, exists := f.shorthands[c]
+	if !exists {
+		switch {
+		case c == 'h':
+			f.usage()
+			err = ErrHelp
+			return
+		case f.ParseErrorsWhitelist.UnknownFlags:
+			// '-f=arg arg ...'
+			// we do not want to lose arg in this case
+			if len(shorthands) > 2 && shorthands[1] == '=' {
+				outShorts = ""
+				return
+			}
+
+			outArgs = stripUnknownFlagValue(outArgs)
+			return
+		default:
+			err = f.failf("unknown shorthand flag: %q in -%s", c, shorthands)
+			return
+		}
+	}
+
+	var value string
+	if len(shorthands) > 2 && shorthands[1] == '=' {
+		// '-f=arg'
+		value = shorthands[2:]
+		outShorts = ""
+	} else if flag.NoOptDefVal != "" {
+		// '-f' (arg was optional)
+		value = flag.NoOptDefVal
+	} else if len(shorthands) > 1 {
+		// '-farg'
+		value = shorthands[1:]
+		outShorts = ""
+	} else if len(args) > 0 {
+		// '-f arg'
+		value = args[0]
+		outArgs = args[1:]
+	} else {
+		// '-f' (arg was required)
+		err = f.failf("flag needs an argument: %q in -%s", c, shorthands)
+		return
+	}
+
+	if flag.ShorthandDeprecated != "" {
+		fmt.Fprintf(f.out(), "Flag shorthand -%s has been deprecated, %s\n", flag.Shorthand, flag.ShorthandDeprecated)
+	}
+
+	err = fn(flag, value)
+	if err != nil {
+		f.failf(err.Error())
+	}
+	return
+}
+
+func (f *FlagSet) parseShortArg(s string, args []string, fn parseFunc) (a []string, err error) {
+	a = args
+	shorthands := s[1:]
+
+	// "shorthands" can be a series of shorthand letters of flags (e.g. "-vvv").
+	for len(shorthands) > 0 {
+		shorthands, a, err = f.parseSingleShortArg(shorthands, args, fn)
+		if err != nil {
+			return
+		}
+	}
+
+	return
+}
+
+func (f *FlagSet) parseArgs(args []string, fn parseFunc) (err error) {
+	for len(args) > 0 {
+		s := args[0]
+		args = args[1:]
+		if len(s) == 0 || s[0] != '-' || len(s) == 1 {
+			if !f.interspersed {
+				f.args = append(f.args, s)
+				f.args = append(f.args, args...)
+				return nil
+			}
+			f.args = append(f.args, s)
+			continue
+		}
+
+		if s[1] == '-' {
+			if len(s) == 2 { // "--" terminates the flags
+				f.argsLenAtDash = len(f.args)
+				f.args = append(f.args, args...)
+				break
+			}
+			args, err = f.parseLongArg(s, args, fn)
+		} else {
+			args, err = f.parseShortArg(s, args, fn)
+		}
+		if err != nil {
+			return
+		}
+	}
+	return
+}
+
+// Parse parses flag definitions from the argument list, which should not
+// include the command name.  Must be called after all flags in the FlagSet
+// are defined and before flags are accessed by the program.
+// The return value will be ErrHelp if -help was set but not defined.
+func (f *FlagSet) Parse(arguments []string) error {
+	if f.addedGoFlagSets != nil {
+		for _, goFlagSet := range f.addedGoFlagSets {
+			goFlagSet.Parse(nil)
+		}
+	}
+	f.parsed = true
+
+	if len(arguments) < 0 {
+		return nil
+	}
+
+	f.args = make([]string, 0, len(arguments))
+
+	set := func(flag *Flag, value string) error {
+		return f.Set(flag.Name, value)
+	}
+
+	err := f.parseArgs(arguments, set)
+	if err != nil {
+		switch f.errorHandling {
+		case ContinueOnError:
+			return err
+		case ExitOnError:
+			fmt.Println(err)
+			os.Exit(2)
+		case PanicOnError:
+			panic(err)
+		}
+	}
+	return nil
+}
+
+type parseFunc func(flag *Flag, value string) error
+
+// ParseAll parses flag definitions from the argument list, which should not
+// include the command name. The arguments for fn are flag and value. Must be
+// called after all flags in the FlagSet are defined and before flags are
+// accessed by the program. The return value will be ErrHelp if -help was set
+// but not defined.
+func (f *FlagSet) ParseAll(arguments []string, fn func(flag *Flag, value string) error) error {
+	f.parsed = true
+	f.args = make([]string, 0, len(arguments))
+
+	err := f.parseArgs(arguments, fn)
+	if err != nil {
+		switch f.errorHandling {
+		case ContinueOnError:
+			return err
+		case ExitOnError:
+			os.Exit(2)
+		case PanicOnError:
+			panic(err)
+		}
+	}
+	return nil
+}
+
+// Parsed reports whether f.Parse has been called.
+func (f *FlagSet) Parsed() bool {
+	return f.parsed
+}
+
+// Parse parses the command-line flags from os.Args[1:].  Must be called
+// after all flags are defined and before flags are accessed by the program.
+func Parse() {
+	// Ignore errors; CommandLine is set for ExitOnError.
+	CommandLine.Parse(os.Args[1:])
+}
+
+// ParseAll parses the command-line flags from os.Args[1:] and called fn for each.
+// The arguments for fn are flag and value. Must be called after all flags are
+// defined and before flags are accessed by the program.
+func ParseAll(fn func(flag *Flag, value string) error) {
+	// Ignore errors; CommandLine is set for ExitOnError.
+	CommandLine.ParseAll(os.Args[1:], fn)
+}
+
+// SetInterspersed sets whether to support interspersed option/non-option arguments.
+func SetInterspersed(interspersed bool) {
+	CommandLine.SetInterspersed(interspersed)
+}
+
+// Parsed returns true if the command-line flags have been parsed.
+func Parsed() bool {
+	return CommandLine.Parsed()
+}
+
+// CommandLine is the default set of command-line flags, parsed from os.Args.
+var CommandLine = NewFlagSet(os.Args[0], ExitOnError)
+
+// NewFlagSet returns a new, empty flag set with the specified name,
+// error handling property and SortFlags set to true.
+func NewFlagSet(name string, errorHandling ErrorHandling) *FlagSet {
+	f := &FlagSet{
+		name:          name,
+		errorHandling: errorHandling,
+		argsLenAtDash: -1,
+		interspersed:  true,
+		SortFlags:     true,
+	}
+	return f
+}
+
+// SetInterspersed sets whether to support interspersed option/non-option arguments.
+func (f *FlagSet) SetInterspersed(interspersed bool) {
+	f.interspersed = interspersed
+}
+
+// Init sets the name and error handling property for a flag set.
+// By default, the zero FlagSet uses an empty name and the
+// ContinueOnError error handling policy.
+func (f *FlagSet) Init(name string, errorHandling ErrorHandling) {
+	f.name = name
+	f.errorHandling = errorHandling
+	f.argsLenAtDash = -1
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/float32.go b/vendor/github.com/spf13/pflag/float32.go
index a0041e2..a243f81 100644
--- a/vendor/github.com/victorhaggqvist/pflag/float32.go
+++ b/vendor/github.com/spf13/pflag/float32.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // -- float32 Value
 type float32Value float32
@@ -19,7 +16,28 @@ func (f *float32Value) Set(s string) error {
 	return err
 }
 
-func (f *float32Value) String() string { return fmt.Sprintf("%v", *f) }
+func (f *float32Value) Type() string {
+	return "float32"
+}
+
+func (f *float32Value) String() string { return strconv.FormatFloat(float64(*f), 'g', -1, 32) }
+
+func float32Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseFloat(sval, 32)
+	if err != nil {
+		return 0, err
+	}
+	return float32(v), nil
+}
+
+// GetFloat32 return the float32 value of a flag with the given name
+func (f *FlagSet) GetFloat32(name string) (float32, error) {
+	val, err := f.getFlagType(name, "float32", float32Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(float32), nil
+}
 
 // Float32Var defines a float32 flag with specified name, default value, and usage string.
 // The argument p points to a float32 variable in which to store the value of the flag.
@@ -27,7 +45,7 @@ func (f *FlagSet) Float32Var(p *float32, name string, value float32, usage strin
 	f.VarP(newFloat32Value(value, p), name, "", usage)
 }
 
-// Like Float32Var, but accepts a shorthand letter that can be used after a single dash.
+// Float32VarP is like Float32Var, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Float32VarP(p *float32, name, shorthand string, value float32, usage string) {
 	f.VarP(newFloat32Value(value, p), name, shorthand, usage)
 }
@@ -38,7 +56,7 @@ func Float32Var(p *float32, name string, value float32, usage string) {
 	CommandLine.VarP(newFloat32Value(value, p), name, "", usage)
 }
 
-// Like Float32Var, but accepts a shorthand letter that can be used after a single dash.
+// Float32VarP is like Float32Var, but accepts a shorthand letter that can be used after a single dash.
 func Float32VarP(p *float32, name, shorthand string, value float32, usage string) {
 	CommandLine.VarP(newFloat32Value(value, p), name, shorthand, usage)
 }
@@ -51,7 +69,7 @@ func (f *FlagSet) Float32(name string, value float32, usage string) *float32 {
 	return p
 }
 
-// Like Float32, but accepts a shorthand letter that can be used after a single dash.
+// Float32P is like Float32, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Float32P(name, shorthand string, value float32, usage string) *float32 {
 	p := new(float32)
 	f.Float32VarP(p, name, shorthand, value, usage)
@@ -64,7 +82,7 @@ func Float32(name string, value float32, usage string) *float32 {
 	return CommandLine.Float32P(name, "", value, usage)
 }
 
-// Like Float32, but accepts a shorthand letter that can be used after a single dash.
+// Float32P is like Float32, but accepts a shorthand letter that can be used after a single dash.
 func Float32P(name, shorthand string, value float32, usage string) *float32 {
 	return CommandLine.Float32P(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/spf13/pflag/float32_slice.go b/vendor/github.com/spf13/pflag/float32_slice.go
new file mode 100644
index 0000000..caa3527
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/float32_slice.go
@@ -0,0 +1,174 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- float32Slice Value
+type float32SliceValue struct {
+	value   *[]float32
+	changed bool
+}
+
+func newFloat32SliceValue(val []float32, p *[]float32) *float32SliceValue {
+	isv := new(float32SliceValue)
+	isv.value = p
+	*isv.value = val
+	return isv
+}
+
+func (s *float32SliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]float32, len(ss))
+	for i, d := range ss {
+		var err error
+		var temp64 float64
+		temp64, err = strconv.ParseFloat(d, 32)
+		if err != nil {
+			return err
+		}
+		out[i] = float32(temp64)
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *float32SliceValue) Type() string {
+	return "float32Slice"
+}
+
+func (s *float32SliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%f", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func (s *float32SliceValue) fromString(val string) (float32, error) {
+	t64, err := strconv.ParseFloat(val, 32)
+	if err != nil {
+		return 0, err
+	}
+	return float32(t64), nil
+}
+
+func (s *float32SliceValue) toString(val float32) string {
+	return fmt.Sprintf("%f", val)
+}
+
+func (s *float32SliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *float32SliceValue) Replace(val []string) error {
+	out := make([]float32, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *float32SliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func float32SliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []float32{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]float32, len(ss))
+	for i, d := range ss {
+		var err error
+		var temp64 float64
+		temp64, err = strconv.ParseFloat(d, 32)
+		if err != nil {
+			return nil, err
+		}
+		out[i] = float32(temp64)
+
+	}
+	return out, nil
+}
+
+// GetFloat32Slice return the []float32 value of a flag with the given name
+func (f *FlagSet) GetFloat32Slice(name string) ([]float32, error) {
+	val, err := f.getFlagType(name, "float32Slice", float32SliceConv)
+	if err != nil {
+		return []float32{}, err
+	}
+	return val.([]float32), nil
+}
+
+// Float32SliceVar defines a float32Slice flag with specified name, default value, and usage string.
+// The argument p points to a []float32 variable in which to store the value of the flag.
+func (f *FlagSet) Float32SliceVar(p *[]float32, name string, value []float32, usage string) {
+	f.VarP(newFloat32SliceValue(value, p), name, "", usage)
+}
+
+// Float32SliceVarP is like Float32SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float32SliceVarP(p *[]float32, name, shorthand string, value []float32, usage string) {
+	f.VarP(newFloat32SliceValue(value, p), name, shorthand, usage)
+}
+
+// Float32SliceVar defines a float32[] flag with specified name, default value, and usage string.
+// The argument p points to a float32[] variable in which to store the value of the flag.
+func Float32SliceVar(p *[]float32, name string, value []float32, usage string) {
+	CommandLine.VarP(newFloat32SliceValue(value, p), name, "", usage)
+}
+
+// Float32SliceVarP is like Float32SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func Float32SliceVarP(p *[]float32, name, shorthand string, value []float32, usage string) {
+	CommandLine.VarP(newFloat32SliceValue(value, p), name, shorthand, usage)
+}
+
+// Float32Slice defines a []float32 flag with specified name, default value, and usage string.
+// The return value is the address of a []float32 variable that stores the value of the flag.
+func (f *FlagSet) Float32Slice(name string, value []float32, usage string) *[]float32 {
+	p := []float32{}
+	f.Float32SliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// Float32SliceP is like Float32Slice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float32SliceP(name, shorthand string, value []float32, usage string) *[]float32 {
+	p := []float32{}
+	f.Float32SliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// Float32Slice defines a []float32 flag with specified name, default value, and usage string.
+// The return value is the address of a []float32 variable that stores the value of the flag.
+func Float32Slice(name string, value []float32, usage string) *[]float32 {
+	return CommandLine.Float32SliceP(name, "", value, usage)
+}
+
+// Float32SliceP is like Float32Slice, but accepts a shorthand letter that can be used after a single dash.
+func Float32SliceP(name, shorthand string, value []float32, usage string) *[]float32 {
+	return CommandLine.Float32SliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/float64.go b/vendor/github.com/spf13/pflag/float64.go
index 8d79be0..04b5492 100644
--- a/vendor/github.com/victorhaggqvist/pflag/float64.go
+++ b/vendor/github.com/spf13/pflag/float64.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // -- float64 Value
 type float64Value float64
@@ -19,7 +16,24 @@ func (f *float64Value) Set(s string) error {
 	return err
 }
 
-func (f *float64Value) String() string { return fmt.Sprintf("%v", *f) }
+func (f *float64Value) Type() string {
+	return "float64"
+}
+
+func (f *float64Value) String() string { return strconv.FormatFloat(float64(*f), 'g', -1, 64) }
+
+func float64Conv(sval string) (interface{}, error) {
+	return strconv.ParseFloat(sval, 64)
+}
+
+// GetFloat64 return the float64 value of a flag with the given name
+func (f *FlagSet) GetFloat64(name string) (float64, error) {
+	val, err := f.getFlagType(name, "float64", float64Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(float64), nil
+}
 
 // Float64Var defines a float64 flag with specified name, default value, and usage string.
 // The argument p points to a float64 variable in which to store the value of the flag.
@@ -27,7 +41,7 @@ func (f *FlagSet) Float64Var(p *float64, name string, value float64, usage strin
 	f.VarP(newFloat64Value(value, p), name, "", usage)
 }
 
-// Like Float64Var, but accepts a shorthand letter that can be used after a single dash.
+// Float64VarP is like Float64Var, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Float64VarP(p *float64, name, shorthand string, value float64, usage string) {
 	f.VarP(newFloat64Value(value, p), name, shorthand, usage)
 }
@@ -38,7 +52,7 @@ func Float64Var(p *float64, name string, value float64, usage string) {
 	CommandLine.VarP(newFloat64Value(value, p), name, "", usage)
 }
 
-// Like Float64Var, but accepts a shorthand letter that can be used after a single dash.
+// Float64VarP is like Float64Var, but accepts a shorthand letter that can be used after a single dash.
 func Float64VarP(p *float64, name, shorthand string, value float64, usage string) {
 	CommandLine.VarP(newFloat64Value(value, p), name, shorthand, usage)
 }
@@ -51,7 +65,7 @@ func (f *FlagSet) Float64(name string, value float64, usage string) *float64 {
 	return p
 }
 
-// Like Float64, but accepts a shorthand letter that can be used after a single dash.
+// Float64P is like Float64, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Float64P(name, shorthand string, value float64, usage string) *float64 {
 	p := new(float64)
 	f.Float64VarP(p, name, shorthand, value, usage)
@@ -64,7 +78,7 @@ func Float64(name string, value float64, usage string) *float64 {
 	return CommandLine.Float64P(name, "", value, usage)
 }
 
-// Like Float64, but accepts a shorthand letter that can be used after a single dash.
+// Float64P is like Float64, but accepts a shorthand letter that can be used after a single dash.
 func Float64P(name, shorthand string, value float64, usage string) *float64 {
 	return CommandLine.Float64P(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/spf13/pflag/float64_slice.go b/vendor/github.com/spf13/pflag/float64_slice.go
new file mode 100644
index 0000000..85bf307
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/float64_slice.go
@@ -0,0 +1,166 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- float64Slice Value
+type float64SliceValue struct {
+	value   *[]float64
+	changed bool
+}
+
+func newFloat64SliceValue(val []float64, p *[]float64) *float64SliceValue {
+	isv := new(float64SliceValue)
+	isv.value = p
+	*isv.value = val
+	return isv
+}
+
+func (s *float64SliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]float64, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.ParseFloat(d, 64)
+		if err != nil {
+			return err
+		}
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *float64SliceValue) Type() string {
+	return "float64Slice"
+}
+
+func (s *float64SliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%f", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func (s *float64SliceValue) fromString(val string) (float64, error) {
+	return strconv.ParseFloat(val, 64)
+}
+
+func (s *float64SliceValue) toString(val float64) string {
+	return fmt.Sprintf("%f", val)
+}
+
+func (s *float64SliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *float64SliceValue) Replace(val []string) error {
+	out := make([]float64, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *float64SliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func float64SliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []float64{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]float64, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.ParseFloat(d, 64)
+		if err != nil {
+			return nil, err
+		}
+
+	}
+	return out, nil
+}
+
+// GetFloat64Slice return the []float64 value of a flag with the given name
+func (f *FlagSet) GetFloat64Slice(name string) ([]float64, error) {
+	val, err := f.getFlagType(name, "float64Slice", float64SliceConv)
+	if err != nil {
+		return []float64{}, err
+	}
+	return val.([]float64), nil
+}
+
+// Float64SliceVar defines a float64Slice flag with specified name, default value, and usage string.
+// The argument p points to a []float64 variable in which to store the value of the flag.
+func (f *FlagSet) Float64SliceVar(p *[]float64, name string, value []float64, usage string) {
+	f.VarP(newFloat64SliceValue(value, p), name, "", usage)
+}
+
+// Float64SliceVarP is like Float64SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float64SliceVarP(p *[]float64, name, shorthand string, value []float64, usage string) {
+	f.VarP(newFloat64SliceValue(value, p), name, shorthand, usage)
+}
+
+// Float64SliceVar defines a float64[] flag with specified name, default value, and usage string.
+// The argument p points to a float64[] variable in which to store the value of the flag.
+func Float64SliceVar(p *[]float64, name string, value []float64, usage string) {
+	CommandLine.VarP(newFloat64SliceValue(value, p), name, "", usage)
+}
+
+// Float64SliceVarP is like Float64SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func Float64SliceVarP(p *[]float64, name, shorthand string, value []float64, usage string) {
+	CommandLine.VarP(newFloat64SliceValue(value, p), name, shorthand, usage)
+}
+
+// Float64Slice defines a []float64 flag with specified name, default value, and usage string.
+// The return value is the address of a []float64 variable that stores the value of the flag.
+func (f *FlagSet) Float64Slice(name string, value []float64, usage string) *[]float64 {
+	p := []float64{}
+	f.Float64SliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// Float64SliceP is like Float64Slice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float64SliceP(name, shorthand string, value []float64, usage string) *[]float64 {
+	p := []float64{}
+	f.Float64SliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// Float64Slice defines a []float64 flag with specified name, default value, and usage string.
+// The return value is the address of a []float64 variable that stores the value of the flag.
+func Float64Slice(name string, value []float64, usage string) *[]float64 {
+	return CommandLine.Float64SliceP(name, "", value, usage)
+}
+
+// Float64SliceP is like Float64Slice, but accepts a shorthand letter that can be used after a single dash.
+func Float64SliceP(name, shorthand string, value []float64, usage string) *[]float64 {
+	return CommandLine.Float64SliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/go.mod b/vendor/github.com/spf13/pflag/go.mod
new file mode 100644
index 0000000..b2287ee
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/go.mod
@@ -0,0 +1,3 @@
+module github.com/spf13/pflag
+
+go 1.12
diff --git a/vendor/github.com/spf13/pflag/go.sum b/vendor/github.com/spf13/pflag/go.sum
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/go.sum
diff --git a/vendor/github.com/spf13/pflag/golangflag.go b/vendor/github.com/spf13/pflag/golangflag.go
new file mode 100644
index 0000000..d3dd72b
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/golangflag.go
@@ -0,0 +1,105 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package pflag
+
+import (
+	goflag "flag"
+	"reflect"
+	"strings"
+)
+
+// flagValueWrapper implements pflag.Value around a flag.Value.  The main
+// difference here is the addition of the Type method that returns a string
+// name of the type.  As this is generally unknown, we approximate that with
+// reflection.
+type flagValueWrapper struct {
+	inner    goflag.Value
+	flagType string
+}
+
+// We are just copying the boolFlag interface out of goflag as that is what
+// they use to decide if a flag should get "true" when no arg is given.
+type goBoolFlag interface {
+	goflag.Value
+	IsBoolFlag() bool
+}
+
+func wrapFlagValue(v goflag.Value) Value {
+	// If the flag.Value happens to also be a pflag.Value, just use it directly.
+	if pv, ok := v.(Value); ok {
+		return pv
+	}
+
+	pv := &flagValueWrapper{
+		inner: v,
+	}
+
+	t := reflect.TypeOf(v)
+	if t.Kind() == reflect.Interface || t.Kind() == reflect.Ptr {
+		t = t.Elem()
+	}
+
+	pv.flagType = strings.TrimSuffix(t.Name(), "Value")
+	return pv
+}
+
+func (v *flagValueWrapper) String() string {
+	return v.inner.String()
+}
+
+func (v *flagValueWrapper) Set(s string) error {
+	return v.inner.Set(s)
+}
+
+func (v *flagValueWrapper) Type() string {
+	return v.flagType
+}
+
+// PFlagFromGoFlag will return a *pflag.Flag given a *flag.Flag
+// If the *flag.Flag.Name was a single character (ex: `v`) it will be accessiblei
+// with both `-v` and `--v` in flags. If the golang flag was more than a single
+// character (ex: `verbose`) it will only be accessible via `--verbose`
+func PFlagFromGoFlag(goflag *goflag.Flag) *Flag {
+	// Remember the default value as a string; it won't change.
+	flag := &Flag{
+		Name:  goflag.Name,
+		Usage: goflag.Usage,
+		Value: wrapFlagValue(goflag.Value),
+		// Looks like golang flags don't set DefValue correctly  :-(
+		//DefValue: goflag.DefValue,
+		DefValue: goflag.Value.String(),
+	}
+	// Ex: if the golang flag was -v, allow both -v and --v to work
+	if len(flag.Name) == 1 {
+		flag.Shorthand = flag.Name
+	}
+	if fv, ok := goflag.Value.(goBoolFlag); ok && fv.IsBoolFlag() {
+		flag.NoOptDefVal = "true"
+	}
+	return flag
+}
+
+// AddGoFlag will add the given *flag.Flag to the pflag.FlagSet
+func (f *FlagSet) AddGoFlag(goflag *goflag.Flag) {
+	if f.Lookup(goflag.Name) != nil {
+		return
+	}
+	newflag := PFlagFromGoFlag(goflag)
+	f.AddFlag(newflag)
+}
+
+// AddGoFlagSet will add the given *flag.FlagSet to the pflag.FlagSet
+func (f *FlagSet) AddGoFlagSet(newSet *goflag.FlagSet) {
+	if newSet == nil {
+		return
+	}
+	newSet.VisitAll(func(goflag *goflag.Flag) {
+		f.AddGoFlag(goflag)
+	})
+	if f.addedGoFlagSets == nil {
+		f.addedGoFlagSets = make([]*goflag.FlagSet, 0)
+	}
+	f.addedGoFlagSets = append(f.addedGoFlagSets, newSet)
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/int.go b/vendor/github.com/spf13/pflag/int.go
index cb85e14..1474b89 100644
--- a/vendor/github.com/victorhaggqvist/pflag/int.go
+++ b/vendor/github.com/spf13/pflag/int.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // -- int Value
 type intValue int
@@ -19,7 +16,24 @@ func (i *intValue) Set(s string) error {
 	return err
 }
 
-func (i *intValue) String() string { return fmt.Sprintf("%v", *i) }
+func (i *intValue) Type() string {
+	return "int"
+}
+
+func (i *intValue) String() string { return strconv.Itoa(int(*i)) }
+
+func intConv(sval string) (interface{}, error) {
+	return strconv.Atoi(sval)
+}
+
+// GetInt return the int value of a flag with the given name
+func (f *FlagSet) GetInt(name string) (int, error) {
+	val, err := f.getFlagType(name, "int", intConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int), nil
+}
 
 // IntVar defines an int flag with specified name, default value, and usage string.
 // The argument p points to an int variable in which to store the value of the flag.
@@ -27,7 +41,7 @@ func (f *FlagSet) IntVar(p *int, name string, value int, usage string) {
 	f.VarP(newIntValue(value, p), name, "", usage)
 }
 
-// Like IntVar, but accepts a shorthand letter that can be used after a single dash.
+// IntVarP is like IntVar, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) IntVarP(p *int, name, shorthand string, value int, usage string) {
 	f.VarP(newIntValue(value, p), name, shorthand, usage)
 }
@@ -38,7 +52,7 @@ func IntVar(p *int, name string, value int, usage string) {
 	CommandLine.VarP(newIntValue(value, p), name, "", usage)
 }
 
-// Like IntVar, but accepts a shorthand letter that can be used after a single dash.
+// IntVarP is like IntVar, but accepts a shorthand letter that can be used after a single dash.
 func IntVarP(p *int, name, shorthand string, value int, usage string) {
 	CommandLine.VarP(newIntValue(value, p), name, shorthand, usage)
 }
@@ -51,7 +65,7 @@ func (f *FlagSet) Int(name string, value int, usage string) *int {
 	return p
 }
 
-// Like Int, but accepts a shorthand letter that can be used after a single dash.
+// IntP is like Int, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) IntP(name, shorthand string, value int, usage string) *int {
 	p := new(int)
 	f.IntVarP(p, name, shorthand, value, usage)
@@ -64,7 +78,7 @@ func Int(name string, value int, usage string) *int {
 	return CommandLine.IntP(name, "", value, usage)
 }
 
-// Like Int, but accepts a shorthand letter that can be used after a single dash.
+// IntP is like Int, but accepts a shorthand letter that can be used after a single dash.
 func IntP(name, shorthand string, value int, usage string) *int {
 	return CommandLine.IntP(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/spf13/pflag/int16.go b/vendor/github.com/spf13/pflag/int16.go
new file mode 100644
index 0000000..f1a01d0
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/int16.go
@@ -0,0 +1,88 @@
+package pflag
+
+import "strconv"
+
+// -- int16 Value
+type int16Value int16
+
+func newInt16Value(val int16, p *int16) *int16Value {
+	*p = val
+	return (*int16Value)(p)
+}
+
+func (i *int16Value) Set(s string) error {
+	v, err := strconv.ParseInt(s, 0, 16)
+	*i = int16Value(v)
+	return err
+}
+
+func (i *int16Value) Type() string {
+	return "int16"
+}
+
+func (i *int16Value) String() string { return strconv.FormatInt(int64(*i), 10) }
+
+func int16Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseInt(sval, 0, 16)
+	if err != nil {
+		return 0, err
+	}
+	return int16(v), nil
+}
+
+// GetInt16 returns the int16 value of a flag with the given name
+func (f *FlagSet) GetInt16(name string) (int16, error) {
+	val, err := f.getFlagType(name, "int16", int16Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int16), nil
+}
+
+// Int16Var defines an int16 flag with specified name, default value, and usage string.
+// The argument p points to an int16 variable in which to store the value of the flag.
+func (f *FlagSet) Int16Var(p *int16, name string, value int16, usage string) {
+	f.VarP(newInt16Value(value, p), name, "", usage)
+}
+
+// Int16VarP is like Int16Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int16VarP(p *int16, name, shorthand string, value int16, usage string) {
+	f.VarP(newInt16Value(value, p), name, shorthand, usage)
+}
+
+// Int16Var defines an int16 flag with specified name, default value, and usage string.
+// The argument p points to an int16 variable in which to store the value of the flag.
+func Int16Var(p *int16, name string, value int16, usage string) {
+	CommandLine.VarP(newInt16Value(value, p), name, "", usage)
+}
+
+// Int16VarP is like Int16Var, but accepts a shorthand letter that can be used after a single dash.
+func Int16VarP(p *int16, name, shorthand string, value int16, usage string) {
+	CommandLine.VarP(newInt16Value(value, p), name, shorthand, usage)
+}
+
+// Int16 defines an int16 flag with specified name, default value, and usage string.
+// The return value is the address of an int16 variable that stores the value of the flag.
+func (f *FlagSet) Int16(name string, value int16, usage string) *int16 {
+	p := new(int16)
+	f.Int16VarP(p, name, "", value, usage)
+	return p
+}
+
+// Int16P is like Int16, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int16P(name, shorthand string, value int16, usage string) *int16 {
+	p := new(int16)
+	f.Int16VarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// Int16 defines an int16 flag with specified name, default value, and usage string.
+// The return value is the address of an int16 variable that stores the value of the flag.
+func Int16(name string, value int16, usage string) *int16 {
+	return CommandLine.Int16P(name, "", value, usage)
+}
+
+// Int16P is like Int16, but accepts a shorthand letter that can be used after a single dash.
+func Int16P(name, shorthand string, value int16, usage string) *int16 {
+	return CommandLine.Int16P(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/int32.go b/vendor/github.com/spf13/pflag/int32.go
index 2e1a317..9b95944 100644
--- a/vendor/github.com/victorhaggqvist/pflag/int32.go
+++ b/vendor/github.com/spf13/pflag/int32.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // -- int32 Value
 type int32Value int32
@@ -19,7 +16,28 @@ func (i *int32Value) Set(s string) error {
 	return err
 }
 
-func (i *int32Value) String() string { return fmt.Sprintf("%v", *i) }
+func (i *int32Value) Type() string {
+	return "int32"
+}
+
+func (i *int32Value) String() string { return strconv.FormatInt(int64(*i), 10) }
+
+func int32Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseInt(sval, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return int32(v), nil
+}
+
+// GetInt32 return the int32 value of a flag with the given name
+func (f *FlagSet) GetInt32(name string) (int32, error) {
+	val, err := f.getFlagType(name, "int32", int32Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int32), nil
+}
 
 // Int32Var defines an int32 flag with specified name, default value, and usage string.
 // The argument p points to an int32 variable in which to store the value of the flag.
@@ -27,7 +45,7 @@ func (f *FlagSet) Int32Var(p *int32, name string, value int32, usage string) {
 	f.VarP(newInt32Value(value, p), name, "", usage)
 }
 
-// Like Int32Var, but accepts a shorthand letter that can be used after a single dash.
+// Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
 	f.VarP(newInt32Value(value, p), name, shorthand, usage)
 }
@@ -38,7 +56,7 @@ func Int32Var(p *int32, name string, value int32, usage string) {
 	CommandLine.VarP(newInt32Value(value, p), name, "", usage)
 }
 
-// Like Int32Var, but accepts a shorthand letter that can be used after a single dash.
+// Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
 func Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
 	CommandLine.VarP(newInt32Value(value, p), name, shorthand, usage)
 }
@@ -51,7 +69,7 @@ func (f *FlagSet) Int32(name string, value int32, usage string) *int32 {
 	return p
 }
 
-// Like Int32, but accepts a shorthand letter that can be used after a single dash.
+// Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Int32P(name, shorthand string, value int32, usage string) *int32 {
 	p := new(int32)
 	f.Int32VarP(p, name, shorthand, value, usage)
@@ -64,7 +82,7 @@ func Int32(name string, value int32, usage string) *int32 {
 	return CommandLine.Int32P(name, "", value, usage)
 }
 
-// Like Int32, but accepts a shorthand letter that can be used after a single dash.
+// Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
 func Int32P(name, shorthand string, value int32, usage string) *int32 {
 	return CommandLine.Int32P(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/spf13/pflag/int32_slice.go b/vendor/github.com/spf13/pflag/int32_slice.go
new file mode 100644
index 0000000..ff128ff
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/int32_slice.go
@@ -0,0 +1,174 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- int32Slice Value
+type int32SliceValue struct {
+	value   *[]int32
+	changed bool
+}
+
+func newInt32SliceValue(val []int32, p *[]int32) *int32SliceValue {
+	isv := new(int32SliceValue)
+	isv.value = p
+	*isv.value = val
+	return isv
+}
+
+func (s *int32SliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]int32, len(ss))
+	for i, d := range ss {
+		var err error
+		var temp64 int64
+		temp64, err = strconv.ParseInt(d, 0, 32)
+		if err != nil {
+			return err
+		}
+		out[i] = int32(temp64)
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *int32SliceValue) Type() string {
+	return "int32Slice"
+}
+
+func (s *int32SliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%d", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func (s *int32SliceValue) fromString(val string) (int32, error) {
+	t64, err := strconv.ParseInt(val, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return int32(t64), nil
+}
+
+func (s *int32SliceValue) toString(val int32) string {
+	return fmt.Sprintf("%d", val)
+}
+
+func (s *int32SliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *int32SliceValue) Replace(val []string) error {
+	out := make([]int32, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *int32SliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func int32SliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []int32{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]int32, len(ss))
+	for i, d := range ss {
+		var err error
+		var temp64 int64
+		temp64, err = strconv.ParseInt(d, 0, 32)
+		if err != nil {
+			return nil, err
+		}
+		out[i] = int32(temp64)
+
+	}
+	return out, nil
+}
+
+// GetInt32Slice return the []int32 value of a flag with the given name
+func (f *FlagSet) GetInt32Slice(name string) ([]int32, error) {
+	val, err := f.getFlagType(name, "int32Slice", int32SliceConv)
+	if err != nil {
+		return []int32{}, err
+	}
+	return val.([]int32), nil
+}
+
+// Int32SliceVar defines a int32Slice flag with specified name, default value, and usage string.
+// The argument p points to a []int32 variable in which to store the value of the flag.
+func (f *FlagSet) Int32SliceVar(p *[]int32, name string, value []int32, usage string) {
+	f.VarP(newInt32SliceValue(value, p), name, "", usage)
+}
+
+// Int32SliceVarP is like Int32SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int32SliceVarP(p *[]int32, name, shorthand string, value []int32, usage string) {
+	f.VarP(newInt32SliceValue(value, p), name, shorthand, usage)
+}
+
+// Int32SliceVar defines a int32[] flag with specified name, default value, and usage string.
+// The argument p points to a int32[] variable in which to store the value of the flag.
+func Int32SliceVar(p *[]int32, name string, value []int32, usage string) {
+	CommandLine.VarP(newInt32SliceValue(value, p), name, "", usage)
+}
+
+// Int32SliceVarP is like Int32SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func Int32SliceVarP(p *[]int32, name, shorthand string, value []int32, usage string) {
+	CommandLine.VarP(newInt32SliceValue(value, p), name, shorthand, usage)
+}
+
+// Int32Slice defines a []int32 flag with specified name, default value, and usage string.
+// The return value is the address of a []int32 variable that stores the value of the flag.
+func (f *FlagSet) Int32Slice(name string, value []int32, usage string) *[]int32 {
+	p := []int32{}
+	f.Int32SliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// Int32SliceP is like Int32Slice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int32SliceP(name, shorthand string, value []int32, usage string) *[]int32 {
+	p := []int32{}
+	f.Int32SliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// Int32Slice defines a []int32 flag with specified name, default value, and usage string.
+// The return value is the address of a []int32 variable that stores the value of the flag.
+func Int32Slice(name string, value []int32, usage string) *[]int32 {
+	return CommandLine.Int32SliceP(name, "", value, usage)
+}
+
+// Int32SliceP is like Int32Slice, but accepts a shorthand letter that can be used after a single dash.
+func Int32SliceP(name, shorthand string, value []int32, usage string) *[]int32 {
+	return CommandLine.Int32SliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/int64.go b/vendor/github.com/spf13/pflag/int64.go
index 43aeced..0026d78 100644
--- a/vendor/github.com/victorhaggqvist/pflag/int64.go
+++ b/vendor/github.com/spf13/pflag/int64.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // -- int64 Value
 type int64Value int64
@@ -19,7 +16,24 @@ func (i *int64Value) Set(s string) error {
 	return err
 }
 
-func (i *int64Value) String() string { return fmt.Sprintf("%v", *i) }
+func (i *int64Value) Type() string {
+	return "int64"
+}
+
+func (i *int64Value) String() string { return strconv.FormatInt(int64(*i), 10) }
+
+func int64Conv(sval string) (interface{}, error) {
+	return strconv.ParseInt(sval, 0, 64)
+}
+
+// GetInt64 return the int64 value of a flag with the given name
+func (f *FlagSet) GetInt64(name string) (int64, error) {
+	val, err := f.getFlagType(name, "int64", int64Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int64), nil
+}
 
 // Int64Var defines an int64 flag with specified name, default value, and usage string.
 // The argument p points to an int64 variable in which to store the value of the flag.
@@ -27,7 +41,7 @@ func (f *FlagSet) Int64Var(p *int64, name string, value int64, usage string) {
 	f.VarP(newInt64Value(value, p), name, "", usage)
 }
 
-// Like Int64Var, but accepts a shorthand letter that can be used after a single dash.
+// Int64VarP is like Int64Var, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Int64VarP(p *int64, name, shorthand string, value int64, usage string) {
 	f.VarP(newInt64Value(value, p), name, shorthand, usage)
 }
@@ -38,7 +52,7 @@ func Int64Var(p *int64, name string, value int64, usage string) {
 	CommandLine.VarP(newInt64Value(value, p), name, "", usage)
 }
 
-// Like Int64Var, but accepts a shorthand letter that can be used after a single dash.
+// Int64VarP is like Int64Var, but accepts a shorthand letter that can be used after a single dash.
 func Int64VarP(p *int64, name, shorthand string, value int64, usage string) {
 	CommandLine.VarP(newInt64Value(value, p), name, shorthand, usage)
 }
@@ -51,7 +65,7 @@ func (f *FlagSet) Int64(name string, value int64, usage string) *int64 {
 	return p
 }
 
-// Like Int64, but accepts a shorthand letter that can be used after a single dash.
+// Int64P is like Int64, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Int64P(name, shorthand string, value int64, usage string) *int64 {
 	p := new(int64)
 	f.Int64VarP(p, name, shorthand, value, usage)
@@ -64,7 +78,7 @@ func Int64(name string, value int64, usage string) *int64 {
 	return CommandLine.Int64P(name, "", value, usage)
 }
 
-// Like Int64, but accepts a shorthand letter that can be used after a single dash.
+// Int64P is like Int64, but accepts a shorthand letter that can be used after a single dash.
 func Int64P(name, shorthand string, value int64, usage string) *int64 {
 	return CommandLine.Int64P(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/spf13/pflag/int64_slice.go b/vendor/github.com/spf13/pflag/int64_slice.go
new file mode 100644
index 0000000..2546463
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/int64_slice.go
@@ -0,0 +1,166 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- int64Slice Value
+type int64SliceValue struct {
+	value   *[]int64
+	changed bool
+}
+
+func newInt64SliceValue(val []int64, p *[]int64) *int64SliceValue {
+	isv := new(int64SliceValue)
+	isv.value = p
+	*isv.value = val
+	return isv
+}
+
+func (s *int64SliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]int64, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.ParseInt(d, 0, 64)
+		if err != nil {
+			return err
+		}
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *int64SliceValue) Type() string {
+	return "int64Slice"
+}
+
+func (s *int64SliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%d", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func (s *int64SliceValue) fromString(val string) (int64, error) {
+	return strconv.ParseInt(val, 0, 64)
+}
+
+func (s *int64SliceValue) toString(val int64) string {
+	return fmt.Sprintf("%d", val)
+}
+
+func (s *int64SliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *int64SliceValue) Replace(val []string) error {
+	out := make([]int64, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *int64SliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func int64SliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []int64{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]int64, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.ParseInt(d, 0, 64)
+		if err != nil {
+			return nil, err
+		}
+
+	}
+	return out, nil
+}
+
+// GetInt64Slice return the []int64 value of a flag with the given name
+func (f *FlagSet) GetInt64Slice(name string) ([]int64, error) {
+	val, err := f.getFlagType(name, "int64Slice", int64SliceConv)
+	if err != nil {
+		return []int64{}, err
+	}
+	return val.([]int64), nil
+}
+
+// Int64SliceVar defines a int64Slice flag with specified name, default value, and usage string.
+// The argument p points to a []int64 variable in which to store the value of the flag.
+func (f *FlagSet) Int64SliceVar(p *[]int64, name string, value []int64, usage string) {
+	f.VarP(newInt64SliceValue(value, p), name, "", usage)
+}
+
+// Int64SliceVarP is like Int64SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int64SliceVarP(p *[]int64, name, shorthand string, value []int64, usage string) {
+	f.VarP(newInt64SliceValue(value, p), name, shorthand, usage)
+}
+
+// Int64SliceVar defines a int64[] flag with specified name, default value, and usage string.
+// The argument p points to a int64[] variable in which to store the value of the flag.
+func Int64SliceVar(p *[]int64, name string, value []int64, usage string) {
+	CommandLine.VarP(newInt64SliceValue(value, p), name, "", usage)
+}
+
+// Int64SliceVarP is like Int64SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func Int64SliceVarP(p *[]int64, name, shorthand string, value []int64, usage string) {
+	CommandLine.VarP(newInt64SliceValue(value, p), name, shorthand, usage)
+}
+
+// Int64Slice defines a []int64 flag with specified name, default value, and usage string.
+// The return value is the address of a []int64 variable that stores the value of the flag.
+func (f *FlagSet) Int64Slice(name string, value []int64, usage string) *[]int64 {
+	p := []int64{}
+	f.Int64SliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// Int64SliceP is like Int64Slice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int64SliceP(name, shorthand string, value []int64, usage string) *[]int64 {
+	p := []int64{}
+	f.Int64SliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// Int64Slice defines a []int64 flag with specified name, default value, and usage string.
+// The return value is the address of a []int64 variable that stores the value of the flag.
+func Int64Slice(name string, value []int64, usage string) *[]int64 {
+	return CommandLine.Int64SliceP(name, "", value, usage)
+}
+
+// Int64SliceP is like Int64Slice, but accepts a shorthand letter that can be used after a single dash.
+func Int64SliceP(name, shorthand string, value []int64, usage string) *[]int64 {
+	return CommandLine.Int64SliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/int8.go b/vendor/github.com/spf13/pflag/int8.go
index 539c4eb..4da9222 100644
--- a/vendor/github.com/victorhaggqvist/pflag/int8.go
+++ b/vendor/github.com/spf13/pflag/int8.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // -- int8 Value
 type int8Value int8
@@ -19,7 +16,28 @@ func (i *int8Value) Set(s string) error {
 	return err
 }
 
-func (i *int8Value) String() string { return fmt.Sprintf("%v", *i) }
+func (i *int8Value) Type() string {
+	return "int8"
+}
+
+func (i *int8Value) String() string { return strconv.FormatInt(int64(*i), 10) }
+
+func int8Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseInt(sval, 0, 8)
+	if err != nil {
+		return 0, err
+	}
+	return int8(v), nil
+}
+
+// GetInt8 return the int8 value of a flag with the given name
+func (f *FlagSet) GetInt8(name string) (int8, error) {
+	val, err := f.getFlagType(name, "int8", int8Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(int8), nil
+}
 
 // Int8Var defines an int8 flag with specified name, default value, and usage string.
 // The argument p points to an int8 variable in which to store the value of the flag.
@@ -27,7 +45,7 @@ func (f *FlagSet) Int8Var(p *int8, name string, value int8, usage string) {
 	f.VarP(newInt8Value(value, p), name, "", usage)
 }
 
-// Like Int8Var, but accepts a shorthand letter that can be used after a single dash.
+// Int8VarP is like Int8Var, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Int8VarP(p *int8, name, shorthand string, value int8, usage string) {
 	f.VarP(newInt8Value(value, p), name, shorthand, usage)
 }
@@ -38,7 +56,7 @@ func Int8Var(p *int8, name string, value int8, usage string) {
 	CommandLine.VarP(newInt8Value(value, p), name, "", usage)
 }
 
-// Like Int8Var, but accepts a shorthand letter that can be used after a single dash.
+// Int8VarP is like Int8Var, but accepts a shorthand letter that can be used after a single dash.
 func Int8VarP(p *int8, name, shorthand string, value int8, usage string) {
 	CommandLine.VarP(newInt8Value(value, p), name, shorthand, usage)
 }
@@ -51,7 +69,7 @@ func (f *FlagSet) Int8(name string, value int8, usage string) *int8 {
 	return p
 }
 
-// Like Int8, but accepts a shorthand letter that can be used after a single dash.
+// Int8P is like Int8, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Int8P(name, shorthand string, value int8, usage string) *int8 {
 	p := new(int8)
 	f.Int8VarP(p, name, shorthand, value, usage)
@@ -64,7 +82,7 @@ func Int8(name string, value int8, usage string) *int8 {
 	return CommandLine.Int8P(name, "", value, usage)
 }
 
-// Like Int8, but accepts a shorthand letter that can be used after a single dash.
+// Int8P is like Int8, but accepts a shorthand letter that can be used after a single dash.
 func Int8P(name, shorthand string, value int8, usage string) *int8 {
 	return CommandLine.Int8P(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/spf13/pflag/int_slice.go b/vendor/github.com/spf13/pflag/int_slice.go
new file mode 100644
index 0000000..e71c39d
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/int_slice.go
@@ -0,0 +1,158 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- intSlice Value
+type intSliceValue struct {
+	value   *[]int
+	changed bool
+}
+
+func newIntSliceValue(val []int, p *[]int) *intSliceValue {
+	isv := new(intSliceValue)
+	isv.value = p
+	*isv.value = val
+	return isv
+}
+
+func (s *intSliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]int, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.Atoi(d)
+		if err != nil {
+			return err
+		}
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *intSliceValue) Type() string {
+	return "intSlice"
+}
+
+func (s *intSliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%d", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func (s *intSliceValue) Append(val string) error {
+	i, err := strconv.Atoi(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *intSliceValue) Replace(val []string) error {
+	out := make([]int, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = strconv.Atoi(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *intSliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = strconv.Itoa(d)
+	}
+	return out
+}
+
+func intSliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []int{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]int, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.Atoi(d)
+		if err != nil {
+			return nil, err
+		}
+
+	}
+	return out, nil
+}
+
+// GetIntSlice return the []int value of a flag with the given name
+func (f *FlagSet) GetIntSlice(name string) ([]int, error) {
+	val, err := f.getFlagType(name, "intSlice", intSliceConv)
+	if err != nil {
+		return []int{}, err
+	}
+	return val.([]int), nil
+}
+
+// IntSliceVar defines a intSlice flag with specified name, default value, and usage string.
+// The argument p points to a []int variable in which to store the value of the flag.
+func (f *FlagSet) IntSliceVar(p *[]int, name string, value []int, usage string) {
+	f.VarP(newIntSliceValue(value, p), name, "", usage)
+}
+
+// IntSliceVarP is like IntSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IntSliceVarP(p *[]int, name, shorthand string, value []int, usage string) {
+	f.VarP(newIntSliceValue(value, p), name, shorthand, usage)
+}
+
+// IntSliceVar defines a int[] flag with specified name, default value, and usage string.
+// The argument p points to a int[] variable in which to store the value of the flag.
+func IntSliceVar(p *[]int, name string, value []int, usage string) {
+	CommandLine.VarP(newIntSliceValue(value, p), name, "", usage)
+}
+
+// IntSliceVarP is like IntSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func IntSliceVarP(p *[]int, name, shorthand string, value []int, usage string) {
+	CommandLine.VarP(newIntSliceValue(value, p), name, shorthand, usage)
+}
+
+// IntSlice defines a []int flag with specified name, default value, and usage string.
+// The return value is the address of a []int variable that stores the value of the flag.
+func (f *FlagSet) IntSlice(name string, value []int, usage string) *[]int {
+	p := []int{}
+	f.IntSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// IntSliceP is like IntSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IntSliceP(name, shorthand string, value []int, usage string) *[]int {
+	p := []int{}
+	f.IntSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// IntSlice defines a []int flag with specified name, default value, and usage string.
+// The return value is the address of a []int variable that stores the value of the flag.
+func IntSlice(name string, value []int, usage string) *[]int {
+	return CommandLine.IntSliceP(name, "", value, usage)
+}
+
+// IntSliceP is like IntSlice, but accepts a shorthand letter that can be used after a single dash.
+func IntSliceP(name, shorthand string, value []int, usage string) *[]int {
+	return CommandLine.IntSliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/ip.go b/vendor/github.com/spf13/pflag/ip.go
index 3a411fc..3d414ba 100644
--- a/vendor/github.com/victorhaggqvist/pflag/ip.go
+++ b/vendor/github.com/spf13/pflag/ip.go
@@ -3,6 +3,7 @@ package pflag
 import (
 	"fmt"
 	"net"
+	"strings"
 )
 
 // -- net.IP value
@@ -15,15 +16,33 @@ func newIPValue(val net.IP, p *net.IP) *ipValue {
 
 func (i *ipValue) String() string { return net.IP(*i).String() }
 func (i *ipValue) Set(s string) error {
-	ip := net.ParseIP(s)
+	ip := net.ParseIP(strings.TrimSpace(s))
 	if ip == nil {
 		return fmt.Errorf("failed to parse IP: %q", s)
 	}
 	*i = ipValue(ip)
 	return nil
 }
-func (i *ipValue) Get() interface{} {
-	return net.IP(*i)
+
+func (i *ipValue) Type() string {
+	return "ip"
+}
+
+func ipConv(sval string) (interface{}, error) {
+	ip := net.ParseIP(sval)
+	if ip != nil {
+		return ip, nil
+	}
+	return nil, fmt.Errorf("invalid string being converted to IP address: %s", sval)
+}
+
+// GetIP return the net.IP value of a flag with the given name
+func (f *FlagSet) GetIP(name string) (net.IP, error) {
+	val, err := f.getFlagType(name, "ip", ipConv)
+	if err != nil {
+		return nil, err
+	}
+	return val.(net.IP), nil
 }
 
 // IPVar defines an net.IP flag with specified name, default value, and usage string.
@@ -32,7 +51,7 @@ func (f *FlagSet) IPVar(p *net.IP, name string, value net.IP, usage string) {
 	f.VarP(newIPValue(value, p), name, "", usage)
 }
 
-// Like IPVar, but accepts a shorthand letter that can be used after a single dash.
+// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
 	f.VarP(newIPValue(value, p), name, shorthand, usage)
 }
@@ -43,7 +62,7 @@ func IPVar(p *net.IP, name string, value net.IP, usage string) {
 	CommandLine.VarP(newIPValue(value, p), name, "", usage)
 }
 
-// Like IPVar, but accepts a shorthand letter that can be used after a single dash.
+// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
 func IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
 	CommandLine.VarP(newIPValue(value, p), name, shorthand, usage)
 }
@@ -56,7 +75,7 @@ func (f *FlagSet) IP(name string, value net.IP, usage string) *net.IP {
 	return p
 }
 
-// Like IP, but accepts a shorthand letter that can be used after a single dash.
+// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) IPP(name, shorthand string, value net.IP, usage string) *net.IP {
 	p := new(net.IP)
 	f.IPVarP(p, name, shorthand, value, usage)
@@ -69,7 +88,7 @@ func IP(name string, value net.IP, usage string) *net.IP {
 	return CommandLine.IPP(name, "", value, usage)
 }
 
-// Like IP, but accepts a shorthand letter that can be used after a single dash.
+// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
 func IPP(name, shorthand string, value net.IP, usage string) *net.IP {
 	return CommandLine.IPP(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/spf13/pflag/ip_slice.go b/vendor/github.com/spf13/pflag/ip_slice.go
new file mode 100644
index 0000000..775faae
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/ip_slice.go
@@ -0,0 +1,186 @@
+package pflag
+
+import (
+	"fmt"
+	"io"
+	"net"
+	"strings"
+)
+
+// -- ipSlice Value
+type ipSliceValue struct {
+	value   *[]net.IP
+	changed bool
+}
+
+func newIPSliceValue(val []net.IP, p *[]net.IP) *ipSliceValue {
+	ipsv := new(ipSliceValue)
+	ipsv.value = p
+	*ipsv.value = val
+	return ipsv
+}
+
+// Set converts, and assigns, the comma-separated IP argument string representation as the []net.IP value of this flag.
+// If Set is called on a flag that already has a []net.IP assigned, the newly converted values will be appended.
+func (s *ipSliceValue) Set(val string) error {
+
+	// remove all quote characters
+	rmQuote := strings.NewReplacer(`"`, "", `'`, "", "`", "")
+
+	// read flag arguments with CSV parser
+	ipStrSlice, err := readAsCSV(rmQuote.Replace(val))
+	if err != nil && err != io.EOF {
+		return err
+	}
+
+	// parse ip values into slice
+	out := make([]net.IP, 0, len(ipStrSlice))
+	for _, ipStr := range ipStrSlice {
+		ip := net.ParseIP(strings.TrimSpace(ipStr))
+		if ip == nil {
+			return fmt.Errorf("invalid string being converted to IP address: %s", ipStr)
+		}
+		out = append(out, ip)
+	}
+
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+
+	s.changed = true
+
+	return nil
+}
+
+// Type returns a string that uniquely represents this flag's type.
+func (s *ipSliceValue) Type() string {
+	return "ipSlice"
+}
+
+// String defines a "native" format for this net.IP slice flag value.
+func (s *ipSliceValue) String() string {
+
+	ipStrSlice := make([]string, len(*s.value))
+	for i, ip := range *s.value {
+		ipStrSlice[i] = ip.String()
+	}
+
+	out, _ := writeAsCSV(ipStrSlice)
+
+	return "[" + out + "]"
+}
+
+func (s *ipSliceValue) fromString(val string) (net.IP, error) {
+	return net.ParseIP(strings.TrimSpace(val)), nil
+}
+
+func (s *ipSliceValue) toString(val net.IP) string {
+	return val.String()
+}
+
+func (s *ipSliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *ipSliceValue) Replace(val []string) error {
+	out := make([]net.IP, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *ipSliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func ipSliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []net.IP{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]net.IP, len(ss))
+	for i, sval := range ss {
+		ip := net.ParseIP(strings.TrimSpace(sval))
+		if ip == nil {
+			return nil, fmt.Errorf("invalid string being converted to IP address: %s", sval)
+		}
+		out[i] = ip
+	}
+	return out, nil
+}
+
+// GetIPSlice returns the []net.IP value of a flag with the given name
+func (f *FlagSet) GetIPSlice(name string) ([]net.IP, error) {
+	val, err := f.getFlagType(name, "ipSlice", ipSliceConv)
+	if err != nil {
+		return []net.IP{}, err
+	}
+	return val.([]net.IP), nil
+}
+
+// IPSliceVar defines a ipSlice flag with specified name, default value, and usage string.
+// The argument p points to a []net.IP variable in which to store the value of the flag.
+func (f *FlagSet) IPSliceVar(p *[]net.IP, name string, value []net.IP, usage string) {
+	f.VarP(newIPSliceValue(value, p), name, "", usage)
+}
+
+// IPSliceVarP is like IPSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPSliceVarP(p *[]net.IP, name, shorthand string, value []net.IP, usage string) {
+	f.VarP(newIPSliceValue(value, p), name, shorthand, usage)
+}
+
+// IPSliceVar defines a []net.IP flag with specified name, default value, and usage string.
+// The argument p points to a []net.IP variable in which to store the value of the flag.
+func IPSliceVar(p *[]net.IP, name string, value []net.IP, usage string) {
+	CommandLine.VarP(newIPSliceValue(value, p), name, "", usage)
+}
+
+// IPSliceVarP is like IPSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func IPSliceVarP(p *[]net.IP, name, shorthand string, value []net.IP, usage string) {
+	CommandLine.VarP(newIPSliceValue(value, p), name, shorthand, usage)
+}
+
+// IPSlice defines a []net.IP flag with specified name, default value, and usage string.
+// The return value is the address of a []net.IP variable that stores the value of that flag.
+func (f *FlagSet) IPSlice(name string, value []net.IP, usage string) *[]net.IP {
+	p := []net.IP{}
+	f.IPSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// IPSliceP is like IPSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPSliceP(name, shorthand string, value []net.IP, usage string) *[]net.IP {
+	p := []net.IP{}
+	f.IPSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// IPSlice defines a []net.IP flag with specified name, default value, and usage string.
+// The return value is the address of a []net.IP variable that stores the value of the flag.
+func IPSlice(name string, value []net.IP, usage string) *[]net.IP {
+	return CommandLine.IPSliceP(name, "", value, usage)
+}
+
+// IPSliceP is like IPSlice, but accepts a shorthand letter that can be used after a single dash.
+func IPSliceP(name, shorthand string, value []net.IP, usage string) *[]net.IP {
+	return CommandLine.IPSliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/ipmask.go b/vendor/github.com/spf13/pflag/ipmask.go
index b8a164a..5bd44bd 100644
--- a/vendor/github.com/victorhaggqvist/pflag/ipmask.go
+++ b/vendor/github.com/spf13/pflag/ipmask.go
@@ -3,6 +3,7 @@ package pflag
 import (
 	"fmt"
 	"net"
+	"strconv"
 )
 
 // -- net.IPMask value
@@ -22,27 +23,63 @@ func (i *ipMaskValue) Set(s string) error {
 	*i = ipMaskValue(ip)
 	return nil
 }
-func (i *ipMaskValue) Get() interface{} {
-	return net.IPMask(*i)
+
+func (i *ipMaskValue) Type() string {
+	return "ipMask"
 }
 
-// Parse IPv4 netmask written in IP form (e.g. 255.255.255.0).
+// ParseIPv4Mask written in IP form (e.g. 255.255.255.0).
 // This function should really belong to the net package.
 func ParseIPv4Mask(s string) net.IPMask {
 	mask := net.ParseIP(s)
 	if mask == nil {
-		return nil
+		if len(s) != 8 {
+			return nil
+		}
+		// net.IPMask.String() actually outputs things like ffffff00
+		// so write a horrible parser for that as well  :-(
+		m := []int{}
+		for i := 0; i < 4; i++ {
+			b := "0x" + s[2*i:2*i+2]
+			d, err := strconv.ParseInt(b, 0, 0)
+			if err != nil {
+				return nil
+			}
+			m = append(m, int(d))
+		}
+		s := fmt.Sprintf("%d.%d.%d.%d", m[0], m[1], m[2], m[3])
+		mask = net.ParseIP(s)
+		if mask == nil {
+			return nil
+		}
 	}
 	return net.IPv4Mask(mask[12], mask[13], mask[14], mask[15])
 }
 
+func parseIPv4Mask(sval string) (interface{}, error) {
+	mask := ParseIPv4Mask(sval)
+	if mask == nil {
+		return nil, fmt.Errorf("unable to parse %s as net.IPMask", sval)
+	}
+	return mask, nil
+}
+
+// GetIPv4Mask return the net.IPv4Mask value of a flag with the given name
+func (f *FlagSet) GetIPv4Mask(name string) (net.IPMask, error) {
+	val, err := f.getFlagType(name, "ipMask", parseIPv4Mask)
+	if err != nil {
+		return nil, err
+	}
+	return val.(net.IPMask), nil
+}
+
 // IPMaskVar defines an net.IPMask flag with specified name, default value, and usage string.
 // The argument p points to an net.IPMask variable in which to store the value of the flag.
 func (f *FlagSet) IPMaskVar(p *net.IPMask, name string, value net.IPMask, usage string) {
 	f.VarP(newIPMaskValue(value, p), name, "", usage)
 }
 
-// Like IPMaskVar, but accepts a shorthand letter that can be used after a single dash.
+// IPMaskVarP is like IPMaskVar, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) IPMaskVarP(p *net.IPMask, name, shorthand string, value net.IPMask, usage string) {
 	f.VarP(newIPMaskValue(value, p), name, shorthand, usage)
 }
@@ -53,7 +90,7 @@ func IPMaskVar(p *net.IPMask, name string, value net.IPMask, usage string) {
 	CommandLine.VarP(newIPMaskValue(value, p), name, "", usage)
 }
 
-// Like IPMaskVar, but accepts a shorthand letter that can be used after a single dash.
+// IPMaskVarP is like IPMaskVar, but accepts a shorthand letter that can be used after a single dash.
 func IPMaskVarP(p *net.IPMask, name, shorthand string, value net.IPMask, usage string) {
 	CommandLine.VarP(newIPMaskValue(value, p), name, shorthand, usage)
 }
@@ -66,7 +103,7 @@ func (f *FlagSet) IPMask(name string, value net.IPMask, usage string) *net.IPMas
 	return p
 }
 
-// Like IPMask, but accepts a shorthand letter that can be used after a single dash.
+// IPMaskP is like IPMask, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) IPMaskP(name, shorthand string, value net.IPMask, usage string) *net.IPMask {
 	p := new(net.IPMask)
 	f.IPMaskVarP(p, name, shorthand, value, usage)
@@ -79,7 +116,7 @@ func IPMask(name string, value net.IPMask, usage string) *net.IPMask {
 	return CommandLine.IPMaskP(name, "", value, usage)
 }
 
-// Like IP, but accepts a shorthand letter that can be used after a single dash.
+// IPMaskP is like IP, but accepts a shorthand letter that can be used after a single dash.
 func IPMaskP(name, shorthand string, value net.IPMask, usage string) *net.IPMask {
 	return CommandLine.IPMaskP(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/spf13/pflag/ipnet.go b/vendor/github.com/spf13/pflag/ipnet.go
new file mode 100644
index 0000000..e2c1b8b
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/ipnet.go
@@ -0,0 +1,98 @@
+package pflag
+
+import (
+	"fmt"
+	"net"
+	"strings"
+)
+
+// IPNet adapts net.IPNet for use as a flag.
+type ipNetValue net.IPNet
+
+func (ipnet ipNetValue) String() string {
+	n := net.IPNet(ipnet)
+	return n.String()
+}
+
+func (ipnet *ipNetValue) Set(value string) error {
+	_, n, err := net.ParseCIDR(strings.TrimSpace(value))
+	if err != nil {
+		return err
+	}
+	*ipnet = ipNetValue(*n)
+	return nil
+}
+
+func (*ipNetValue) Type() string {
+	return "ipNet"
+}
+
+func newIPNetValue(val net.IPNet, p *net.IPNet) *ipNetValue {
+	*p = val
+	return (*ipNetValue)(p)
+}
+
+func ipNetConv(sval string) (interface{}, error) {
+	_, n, err := net.ParseCIDR(strings.TrimSpace(sval))
+	if err == nil {
+		return *n, nil
+	}
+	return nil, fmt.Errorf("invalid string being converted to IPNet: %s", sval)
+}
+
+// GetIPNet return the net.IPNet value of a flag with the given name
+func (f *FlagSet) GetIPNet(name string) (net.IPNet, error) {
+	val, err := f.getFlagType(name, "ipNet", ipNetConv)
+	if err != nil {
+		return net.IPNet{}, err
+	}
+	return val.(net.IPNet), nil
+}
+
+// IPNetVar defines an net.IPNet flag with specified name, default value, and usage string.
+// The argument p points to an net.IPNet variable in which to store the value of the flag.
+func (f *FlagSet) IPNetVar(p *net.IPNet, name string, value net.IPNet, usage string) {
+	f.VarP(newIPNetValue(value, p), name, "", usage)
+}
+
+// IPNetVarP is like IPNetVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPNetVarP(p *net.IPNet, name, shorthand string, value net.IPNet, usage string) {
+	f.VarP(newIPNetValue(value, p), name, shorthand, usage)
+}
+
+// IPNetVar defines an net.IPNet flag with specified name, default value, and usage string.
+// The argument p points to an net.IPNet variable in which to store the value of the flag.
+func IPNetVar(p *net.IPNet, name string, value net.IPNet, usage string) {
+	CommandLine.VarP(newIPNetValue(value, p), name, "", usage)
+}
+
+// IPNetVarP is like IPNetVar, but accepts a shorthand letter that can be used after a single dash.
+func IPNetVarP(p *net.IPNet, name, shorthand string, value net.IPNet, usage string) {
+	CommandLine.VarP(newIPNetValue(value, p), name, shorthand, usage)
+}
+
+// IPNet defines an net.IPNet flag with specified name, default value, and usage string.
+// The return value is the address of an net.IPNet variable that stores the value of the flag.
+func (f *FlagSet) IPNet(name string, value net.IPNet, usage string) *net.IPNet {
+	p := new(net.IPNet)
+	f.IPNetVarP(p, name, "", value, usage)
+	return p
+}
+
+// IPNetP is like IPNet, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) IPNetP(name, shorthand string, value net.IPNet, usage string) *net.IPNet {
+	p := new(net.IPNet)
+	f.IPNetVarP(p, name, shorthand, value, usage)
+	return p
+}
+
+// IPNet defines an net.IPNet flag with specified name, default value, and usage string.
+// The return value is the address of an net.IPNet variable that stores the value of the flag.
+func IPNet(name string, value net.IPNet, usage string) *net.IPNet {
+	return CommandLine.IPNetP(name, "", value, usage)
+}
+
+// IPNetP is like IPNet, but accepts a shorthand letter that can be used after a single dash.
+func IPNetP(name, shorthand string, value net.IPNet, usage string) *net.IPNet {
+	return CommandLine.IPNetP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/string.go b/vendor/github.com/spf13/pflag/string.go
index 65c0cb7..04e0a26 100644
--- a/vendor/github.com/victorhaggqvist/pflag/string.go
+++ b/vendor/github.com/spf13/pflag/string.go
@@ -1,7 +1,5 @@
 package pflag
 
-import "fmt"
-
 // -- string Value
 type stringValue string
 
@@ -14,8 +12,24 @@ func (s *stringValue) Set(val string) error {
 	*s = stringValue(val)
 	return nil
 }
+func (s *stringValue) Type() string {
+	return "string"
+}
+
+func (s *stringValue) String() string { return string(*s) }
+
+func stringConv(sval string) (interface{}, error) {
+	return sval, nil
+}
 
-func (s *stringValue) String() string { return fmt.Sprintf("%s", *s) }
+// GetString return the string value of a flag with the given name
+func (f *FlagSet) GetString(name string) (string, error) {
+	val, err := f.getFlagType(name, "string", stringConv)
+	if err != nil {
+		return "", err
+	}
+	return val.(string), nil
+}
 
 // StringVar defines a string flag with specified name, default value, and usage string.
 // The argument p points to a string variable in which to store the value of the flag.
@@ -23,7 +37,7 @@ func (f *FlagSet) StringVar(p *string, name string, value string, usage string)
 	f.VarP(newStringValue(value, p), name, "", usage)
 }
 
-// Like StringVar, but accepts a shorthand letter that can be used after a single dash.
+// StringVarP is like StringVar, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) StringVarP(p *string, name, shorthand string, value string, usage string) {
 	f.VarP(newStringValue(value, p), name, shorthand, usage)
 }
@@ -34,7 +48,7 @@ func StringVar(p *string, name string, value string, usage string) {
 	CommandLine.VarP(newStringValue(value, p), name, "", usage)
 }
 
-// Like StringVar, but accepts a shorthand letter that can be used after a single dash.
+// StringVarP is like StringVar, but accepts a shorthand letter that can be used after a single dash.
 func StringVarP(p *string, name, shorthand string, value string, usage string) {
 	CommandLine.VarP(newStringValue(value, p), name, shorthand, usage)
 }
@@ -47,7 +61,7 @@ func (f *FlagSet) String(name string, value string, usage string) *string {
 	return p
 }
 
-// Like String, but accepts a shorthand letter that can be used after a single dash.
+// StringP is like String, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) StringP(name, shorthand string, value string, usage string) *string {
 	p := new(string)
 	f.StringVarP(p, name, shorthand, value, usage)
@@ -60,7 +74,7 @@ func String(name string, value string, usage string) *string {
 	return CommandLine.StringP(name, "", value, usage)
 }
 
-// Like String, but accepts a shorthand letter that can be used after a single dash.
+// StringP is like String, but accepts a shorthand letter that can be used after a single dash.
 func StringP(name, shorthand string, value string, usage string) *string {
 	return CommandLine.StringP(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/spf13/pflag/string_array.go b/vendor/github.com/spf13/pflag/string_array.go
new file mode 100644
index 0000000..4894af8
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/string_array.go
@@ -0,0 +1,129 @@
+package pflag
+
+// -- stringArray Value
+type stringArrayValue struct {
+	value   *[]string
+	changed bool
+}
+
+func newStringArrayValue(val []string, p *[]string) *stringArrayValue {
+	ssv := new(stringArrayValue)
+	ssv.value = p
+	*ssv.value = val
+	return ssv
+}
+
+func (s *stringArrayValue) Set(val string) error {
+	if !s.changed {
+		*s.value = []string{val}
+		s.changed = true
+	} else {
+		*s.value = append(*s.value, val)
+	}
+	return nil
+}
+
+func (s *stringArrayValue) Append(val string) error {
+	*s.value = append(*s.value, val)
+	return nil
+}
+
+func (s *stringArrayValue) Replace(val []string) error {
+	out := make([]string, len(val))
+	for i, d := range val {
+		var err error
+		out[i] = d
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *stringArrayValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = d
+	}
+	return out
+}
+
+func (s *stringArrayValue) Type() string {
+	return "stringArray"
+}
+
+func (s *stringArrayValue) String() string {
+	str, _ := writeAsCSV(*s.value)
+	return "[" + str + "]"
+}
+
+func stringArrayConv(sval string) (interface{}, error) {
+	sval = sval[1 : len(sval)-1]
+	// An empty string would cause a array with one (empty) string
+	if len(sval) == 0 {
+		return []string{}, nil
+	}
+	return readAsCSV(sval)
+}
+
+// GetStringArray return the []string value of a flag with the given name
+func (f *FlagSet) GetStringArray(name string) ([]string, error) {
+	val, err := f.getFlagType(name, "stringArray", stringArrayConv)
+	if err != nil {
+		return []string{}, err
+	}
+	return val.([]string), nil
+}
+
+// StringArrayVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a []string variable in which to store the values of the multiple flags.
+// The value of each argument will not try to be separated by comma. Use a StringSlice for that.
+func (f *FlagSet) StringArrayVar(p *[]string, name string, value []string, usage string) {
+	f.VarP(newStringArrayValue(value, p), name, "", usage)
+}
+
+// StringArrayVarP is like StringArrayVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringArrayVarP(p *[]string, name, shorthand string, value []string, usage string) {
+	f.VarP(newStringArrayValue(value, p), name, shorthand, usage)
+}
+
+// StringArrayVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a []string variable in which to store the value of the flag.
+// The value of each argument will not try to be separated by comma. Use a StringSlice for that.
+func StringArrayVar(p *[]string, name string, value []string, usage string) {
+	CommandLine.VarP(newStringArrayValue(value, p), name, "", usage)
+}
+
+// StringArrayVarP is like StringArrayVar, but accepts a shorthand letter that can be used after a single dash.
+func StringArrayVarP(p *[]string, name, shorthand string, value []string, usage string) {
+	CommandLine.VarP(newStringArrayValue(value, p), name, shorthand, usage)
+}
+
+// StringArray defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a []string variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma. Use a StringSlice for that.
+func (f *FlagSet) StringArray(name string, value []string, usage string) *[]string {
+	p := []string{}
+	f.StringArrayVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// StringArrayP is like StringArray, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringArrayP(name, shorthand string, value []string, usage string) *[]string {
+	p := []string{}
+	f.StringArrayVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// StringArray defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a []string variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma. Use a StringSlice for that.
+func StringArray(name string, value []string, usage string) *[]string {
+	return CommandLine.StringArrayP(name, "", value, usage)
+}
+
+// StringArrayP is like StringArray, but accepts a shorthand letter that can be used after a single dash.
+func StringArrayP(name, shorthand string, value []string, usage string) *[]string {
+	return CommandLine.StringArrayP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/string_slice.go b/vendor/github.com/spf13/pflag/string_slice.go
new file mode 100644
index 0000000..3cb2e69
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/string_slice.go
@@ -0,0 +1,163 @@
+package pflag
+
+import (
+	"bytes"
+	"encoding/csv"
+	"strings"
+)
+
+// -- stringSlice Value
+type stringSliceValue struct {
+	value   *[]string
+	changed bool
+}
+
+func newStringSliceValue(val []string, p *[]string) *stringSliceValue {
+	ssv := new(stringSliceValue)
+	ssv.value = p
+	*ssv.value = val
+	return ssv
+}
+
+func readAsCSV(val string) ([]string, error) {
+	if val == "" {
+		return []string{}, nil
+	}
+	stringReader := strings.NewReader(val)
+	csvReader := csv.NewReader(stringReader)
+	return csvReader.Read()
+}
+
+func writeAsCSV(vals []string) (string, error) {
+	b := &bytes.Buffer{}
+	w := csv.NewWriter(b)
+	err := w.Write(vals)
+	if err != nil {
+		return "", err
+	}
+	w.Flush()
+	return strings.TrimSuffix(b.String(), "\n"), nil
+}
+
+func (s *stringSliceValue) Set(val string) error {
+	v, err := readAsCSV(val)
+	if err != nil {
+		return err
+	}
+	if !s.changed {
+		*s.value = v
+	} else {
+		*s.value = append(*s.value, v...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *stringSliceValue) Type() string {
+	return "stringSlice"
+}
+
+func (s *stringSliceValue) String() string {
+	str, _ := writeAsCSV(*s.value)
+	return "[" + str + "]"
+}
+
+func (s *stringSliceValue) Append(val string) error {
+	*s.value = append(*s.value, val)
+	return nil
+}
+
+func (s *stringSliceValue) Replace(val []string) error {
+	*s.value = val
+	return nil
+}
+
+func (s *stringSliceValue) GetSlice() []string {
+	return *s.value
+}
+
+func stringSliceConv(sval string) (interface{}, error) {
+	sval = sval[1 : len(sval)-1]
+	// An empty string would cause a slice with one (empty) string
+	if len(sval) == 0 {
+		return []string{}, nil
+	}
+	return readAsCSV(sval)
+}
+
+// GetStringSlice return the []string value of a flag with the given name
+func (f *FlagSet) GetStringSlice(name string) ([]string, error) {
+	val, err := f.getFlagType(name, "stringSlice", stringSliceConv)
+	if err != nil {
+		return []string{}, err
+	}
+	return val.([]string), nil
+}
+
+// StringSliceVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a []string variable in which to store the value of the flag.
+// Compared to StringArray flags, StringSlice flags take comma-separated value as arguments and split them accordingly.
+// For example:
+//   --ss="v1,v2" --ss="v3"
+// will result in
+//   []string{"v1", "v2", "v3"}
+func (f *FlagSet) StringSliceVar(p *[]string, name string, value []string, usage string) {
+	f.VarP(newStringSliceValue(value, p), name, "", usage)
+}
+
+// StringSliceVarP is like StringSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringSliceVarP(p *[]string, name, shorthand string, value []string, usage string) {
+	f.VarP(newStringSliceValue(value, p), name, shorthand, usage)
+}
+
+// StringSliceVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a []string variable in which to store the value of the flag.
+// Compared to StringArray flags, StringSlice flags take comma-separated value as arguments and split them accordingly.
+// For example:
+//   --ss="v1,v2" --ss="v3"
+// will result in
+//   []string{"v1", "v2", "v3"}
+func StringSliceVar(p *[]string, name string, value []string, usage string) {
+	CommandLine.VarP(newStringSliceValue(value, p), name, "", usage)
+}
+
+// StringSliceVarP is like StringSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func StringSliceVarP(p *[]string, name, shorthand string, value []string, usage string) {
+	CommandLine.VarP(newStringSliceValue(value, p), name, shorthand, usage)
+}
+
+// StringSlice defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a []string variable that stores the value of the flag.
+// Compared to StringArray flags, StringSlice flags take comma-separated value as arguments and split them accordingly.
+// For example:
+//   --ss="v1,v2" --ss="v3"
+// will result in
+//   []string{"v1", "v2", "v3"}
+func (f *FlagSet) StringSlice(name string, value []string, usage string) *[]string {
+	p := []string{}
+	f.StringSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// StringSliceP is like StringSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringSliceP(name, shorthand string, value []string, usage string) *[]string {
+	p := []string{}
+	f.StringSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// StringSlice defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a []string variable that stores the value of the flag.
+// Compared to StringArray flags, StringSlice flags take comma-separated value as arguments and split them accordingly.
+// For example:
+//   --ss="v1,v2" --ss="v3"
+// will result in
+//   []string{"v1", "v2", "v3"}
+func StringSlice(name string, value []string, usage string) *[]string {
+	return CommandLine.StringSliceP(name, "", value, usage)
+}
+
+// StringSliceP is like StringSlice, but accepts a shorthand letter that can be used after a single dash.
+func StringSliceP(name, shorthand string, value []string, usage string) *[]string {
+	return CommandLine.StringSliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/string_to_int.go b/vendor/github.com/spf13/pflag/string_to_int.go
new file mode 100644
index 0000000..5ceda39
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/string_to_int.go
@@ -0,0 +1,149 @@
+package pflag
+
+import (
+	"bytes"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- stringToInt Value
+type stringToIntValue struct {
+	value   *map[string]int
+	changed bool
+}
+
+func newStringToIntValue(val map[string]int, p *map[string]int) *stringToIntValue {
+	ssv := new(stringToIntValue)
+	ssv.value = p
+	*ssv.value = val
+	return ssv
+}
+
+// Format: a=1,b=2
+func (s *stringToIntValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make(map[string]int, len(ss))
+	for _, pair := range ss {
+		kv := strings.SplitN(pair, "=", 2)
+		if len(kv) != 2 {
+			return fmt.Errorf("%s must be formatted as key=value", pair)
+		}
+		var err error
+		out[kv[0]], err = strconv.Atoi(kv[1])
+		if err != nil {
+			return err
+		}
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		for k, v := range out {
+			(*s.value)[k] = v
+		}
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *stringToIntValue) Type() string {
+	return "stringToInt"
+}
+
+func (s *stringToIntValue) String() string {
+	var buf bytes.Buffer
+	i := 0
+	for k, v := range *s.value {
+		if i > 0 {
+			buf.WriteRune(',')
+		}
+		buf.WriteString(k)
+		buf.WriteRune('=')
+		buf.WriteString(strconv.Itoa(v))
+		i++
+	}
+	return "[" + buf.String() + "]"
+}
+
+func stringToIntConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// An empty string would cause an empty map
+	if len(val) == 0 {
+		return map[string]int{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make(map[string]int, len(ss))
+	for _, pair := range ss {
+		kv := strings.SplitN(pair, "=", 2)
+		if len(kv) != 2 {
+			return nil, fmt.Errorf("%s must be formatted as key=value", pair)
+		}
+		var err error
+		out[kv[0]], err = strconv.Atoi(kv[1])
+		if err != nil {
+			return nil, err
+		}
+	}
+	return out, nil
+}
+
+// GetStringToInt return the map[string]int value of a flag with the given name
+func (f *FlagSet) GetStringToInt(name string) (map[string]int, error) {
+	val, err := f.getFlagType(name, "stringToInt", stringToIntConv)
+	if err != nil {
+		return map[string]int{}, err
+	}
+	return val.(map[string]int), nil
+}
+
+// StringToIntVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a map[string]int variable in which to store the values of the multiple flags.
+// The value of each argument will not try to be separated by comma
+func (f *FlagSet) StringToIntVar(p *map[string]int, name string, value map[string]int, usage string) {
+	f.VarP(newStringToIntValue(value, p), name, "", usage)
+}
+
+// StringToIntVarP is like StringToIntVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringToIntVarP(p *map[string]int, name, shorthand string, value map[string]int, usage string) {
+	f.VarP(newStringToIntValue(value, p), name, shorthand, usage)
+}
+
+// StringToIntVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a map[string]int variable in which to store the value of the flag.
+// The value of each argument will not try to be separated by comma
+func StringToIntVar(p *map[string]int, name string, value map[string]int, usage string) {
+	CommandLine.VarP(newStringToIntValue(value, p), name, "", usage)
+}
+
+// StringToIntVarP is like StringToIntVar, but accepts a shorthand letter that can be used after a single dash.
+func StringToIntVarP(p *map[string]int, name, shorthand string, value map[string]int, usage string) {
+	CommandLine.VarP(newStringToIntValue(value, p), name, shorthand, usage)
+}
+
+// StringToInt defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a map[string]int variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma
+func (f *FlagSet) StringToInt(name string, value map[string]int, usage string) *map[string]int {
+	p := map[string]int{}
+	f.StringToIntVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// StringToIntP is like StringToInt, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringToIntP(name, shorthand string, value map[string]int, usage string) *map[string]int {
+	p := map[string]int{}
+	f.StringToIntVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// StringToInt defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a map[string]int variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma
+func StringToInt(name string, value map[string]int, usage string) *map[string]int {
+	return CommandLine.StringToIntP(name, "", value, usage)
+}
+
+// StringToIntP is like StringToInt, but accepts a shorthand letter that can be used after a single dash.
+func StringToIntP(name, shorthand string, value map[string]int, usage string) *map[string]int {
+	return CommandLine.StringToIntP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/string_to_int64.go b/vendor/github.com/spf13/pflag/string_to_int64.go
new file mode 100644
index 0000000..a807a04
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/string_to_int64.go
@@ -0,0 +1,149 @@
+package pflag
+
+import (
+	"bytes"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- stringToInt64 Value
+type stringToInt64Value struct {
+	value   *map[string]int64
+	changed bool
+}
+
+func newStringToInt64Value(val map[string]int64, p *map[string]int64) *stringToInt64Value {
+	ssv := new(stringToInt64Value)
+	ssv.value = p
+	*ssv.value = val
+	return ssv
+}
+
+// Format: a=1,b=2
+func (s *stringToInt64Value) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make(map[string]int64, len(ss))
+	for _, pair := range ss {
+		kv := strings.SplitN(pair, "=", 2)
+		if len(kv) != 2 {
+			return fmt.Errorf("%s must be formatted as key=value", pair)
+		}
+		var err error
+		out[kv[0]], err = strconv.ParseInt(kv[1], 10, 64)
+		if err != nil {
+			return err
+		}
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		for k, v := range out {
+			(*s.value)[k] = v
+		}
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *stringToInt64Value) Type() string {
+	return "stringToInt64"
+}
+
+func (s *stringToInt64Value) String() string {
+	var buf bytes.Buffer
+	i := 0
+	for k, v := range *s.value {
+		if i > 0 {
+			buf.WriteRune(',')
+		}
+		buf.WriteString(k)
+		buf.WriteRune('=')
+		buf.WriteString(strconv.FormatInt(v, 10))
+		i++
+	}
+	return "[" + buf.String() + "]"
+}
+
+func stringToInt64Conv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// An empty string would cause an empty map
+	if len(val) == 0 {
+		return map[string]int64{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make(map[string]int64, len(ss))
+	for _, pair := range ss {
+		kv := strings.SplitN(pair, "=", 2)
+		if len(kv) != 2 {
+			return nil, fmt.Errorf("%s must be formatted as key=value", pair)
+		}
+		var err error
+		out[kv[0]], err = strconv.ParseInt(kv[1], 10, 64)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return out, nil
+}
+
+// GetStringToInt64 return the map[string]int64 value of a flag with the given name
+func (f *FlagSet) GetStringToInt64(name string) (map[string]int64, error) {
+	val, err := f.getFlagType(name, "stringToInt64", stringToInt64Conv)
+	if err != nil {
+		return map[string]int64{}, err
+	}
+	return val.(map[string]int64), nil
+}
+
+// StringToInt64Var defines a string flag with specified name, default value, and usage string.
+// The argument p point64s to a map[string]int64 variable in which to store the values of the multiple flags.
+// The value of each argument will not try to be separated by comma
+func (f *FlagSet) StringToInt64Var(p *map[string]int64, name string, value map[string]int64, usage string) {
+	f.VarP(newStringToInt64Value(value, p), name, "", usage)
+}
+
+// StringToInt64VarP is like StringToInt64Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringToInt64VarP(p *map[string]int64, name, shorthand string, value map[string]int64, usage string) {
+	f.VarP(newStringToInt64Value(value, p), name, shorthand, usage)
+}
+
+// StringToInt64Var defines a string flag with specified name, default value, and usage string.
+// The argument p point64s to a map[string]int64 variable in which to store the value of the flag.
+// The value of each argument will not try to be separated by comma
+func StringToInt64Var(p *map[string]int64, name string, value map[string]int64, usage string) {
+	CommandLine.VarP(newStringToInt64Value(value, p), name, "", usage)
+}
+
+// StringToInt64VarP is like StringToInt64Var, but accepts a shorthand letter that can be used after a single dash.
+func StringToInt64VarP(p *map[string]int64, name, shorthand string, value map[string]int64, usage string) {
+	CommandLine.VarP(newStringToInt64Value(value, p), name, shorthand, usage)
+}
+
+// StringToInt64 defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a map[string]int64 variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma
+func (f *FlagSet) StringToInt64(name string, value map[string]int64, usage string) *map[string]int64 {
+	p := map[string]int64{}
+	f.StringToInt64VarP(&p, name, "", value, usage)
+	return &p
+}
+
+// StringToInt64P is like StringToInt64, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringToInt64P(name, shorthand string, value map[string]int64, usage string) *map[string]int64 {
+	p := map[string]int64{}
+	f.StringToInt64VarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// StringToInt64 defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a map[string]int64 variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma
+func StringToInt64(name string, value map[string]int64, usage string) *map[string]int64 {
+	return CommandLine.StringToInt64P(name, "", value, usage)
+}
+
+// StringToInt64P is like StringToInt64, but accepts a shorthand letter that can be used after a single dash.
+func StringToInt64P(name, shorthand string, value map[string]int64, usage string) *map[string]int64 {
+	return CommandLine.StringToInt64P(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/spf13/pflag/string_to_string.go b/vendor/github.com/spf13/pflag/string_to_string.go
new file mode 100644
index 0000000..890a01a
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/string_to_string.go
@@ -0,0 +1,160 @@
+package pflag
+
+import (
+	"bytes"
+	"encoding/csv"
+	"fmt"
+	"strings"
+)
+
+// -- stringToString Value
+type stringToStringValue struct {
+	value   *map[string]string
+	changed bool
+}
+
+func newStringToStringValue(val map[string]string, p *map[string]string) *stringToStringValue {
+	ssv := new(stringToStringValue)
+	ssv.value = p
+	*ssv.value = val
+	return ssv
+}
+
+// Format: a=1,b=2
+func (s *stringToStringValue) Set(val string) error {
+	var ss []string
+	n := strings.Count(val, "=")
+	switch n {
+	case 0:
+		return fmt.Errorf("%s must be formatted as key=value", val)
+	case 1:
+		ss = append(ss, strings.Trim(val, `"`))
+	default:
+		r := csv.NewReader(strings.NewReader(val))
+		var err error
+		ss, err = r.Read()
+		if err != nil {
+			return err
+		}
+	}
+
+	out := make(map[string]string, len(ss))
+	for _, pair := range ss {
+		kv := strings.SplitN(pair, "=", 2)
+		if len(kv) != 2 {
+			return fmt.Errorf("%s must be formatted as key=value", pair)
+		}
+		out[kv[0]] = kv[1]
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		for k, v := range out {
+			(*s.value)[k] = v
+		}
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *stringToStringValue) Type() string {
+	return "stringToString"
+}
+
+func (s *stringToStringValue) String() string {
+	records := make([]string, 0, len(*s.value)>>1)
+	for k, v := range *s.value {
+		records = append(records, k+"="+v)
+	}
+
+	var buf bytes.Buffer
+	w := csv.NewWriter(&buf)
+	if err := w.Write(records); err != nil {
+		panic(err)
+	}
+	w.Flush()
+	return "[" + strings.TrimSpace(buf.String()) + "]"
+}
+
+func stringToStringConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// An empty string would cause an empty map
+	if len(val) == 0 {
+		return map[string]string{}, nil
+	}
+	r := csv.NewReader(strings.NewReader(val))
+	ss, err := r.Read()
+	if err != nil {
+		return nil, err
+	}
+	out := make(map[string]string, len(ss))
+	for _, pair := range ss {
+		kv := strings.SplitN(pair, "=", 2)
+		if len(kv) != 2 {
+			return nil, fmt.Errorf("%s must be formatted as key=value", pair)
+		}
+		out[kv[0]] = kv[1]
+	}
+	return out, nil
+}
+
+// GetStringToString return the map[string]string value of a flag with the given name
+func (f *FlagSet) GetStringToString(name string) (map[string]string, error) {
+	val, err := f.getFlagType(name, "stringToString", stringToStringConv)
+	if err != nil {
+		return map[string]string{}, err
+	}
+	return val.(map[string]string), nil
+}
+
+// StringToStringVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a map[string]string variable in which to store the values of the multiple flags.
+// The value of each argument will not try to be separated by comma
+func (f *FlagSet) StringToStringVar(p *map[string]string, name string, value map[string]string, usage string) {
+	f.VarP(newStringToStringValue(value, p), name, "", usage)
+}
+
+// StringToStringVarP is like StringToStringVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringToStringVarP(p *map[string]string, name, shorthand string, value map[string]string, usage string) {
+	f.VarP(newStringToStringValue(value, p), name, shorthand, usage)
+}
+
+// StringToStringVar defines a string flag with specified name, default value, and usage string.
+// The argument p points to a map[string]string variable in which to store the value of the flag.
+// The value of each argument will not try to be separated by comma
+func StringToStringVar(p *map[string]string, name string, value map[string]string, usage string) {
+	CommandLine.VarP(newStringToStringValue(value, p), name, "", usage)
+}
+
+// StringToStringVarP is like StringToStringVar, but accepts a shorthand letter that can be used after a single dash.
+func StringToStringVarP(p *map[string]string, name, shorthand string, value map[string]string, usage string) {
+	CommandLine.VarP(newStringToStringValue(value, p), name, shorthand, usage)
+}
+
+// StringToString defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a map[string]string variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma
+func (f *FlagSet) StringToString(name string, value map[string]string, usage string) *map[string]string {
+	p := map[string]string{}
+	f.StringToStringVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// StringToStringP is like StringToString, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringToStringP(name, shorthand string, value map[string]string, usage string) *map[string]string {
+	p := map[string]string{}
+	f.StringToStringVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// StringToString defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a map[string]string variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma
+func StringToString(name string, value map[string]string, usage string) *map[string]string {
+	return CommandLine.StringToStringP(name, "", value, usage)
+}
+
+// StringToStringP is like StringToString, but accepts a shorthand letter that can be used after a single dash.
+func StringToStringP(name, shorthand string, value map[string]string, usage string) *map[string]string {
+	return CommandLine.StringToStringP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/uint.go b/vendor/github.com/spf13/pflag/uint.go
index 40b9ebb..dcbc2b7 100644
--- a/vendor/github.com/victorhaggqvist/pflag/uint.go
+++ b/vendor/github.com/spf13/pflag/uint.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // -- uint Value
 type uintValue uint
@@ -19,7 +16,28 @@ func (i *uintValue) Set(s string) error {
 	return err
 }
 
-func (i *uintValue) String() string { return fmt.Sprintf("%v", *i) }
+func (i *uintValue) Type() string {
+	return "uint"
+}
+
+func (i *uintValue) String() string { return strconv.FormatUint(uint64(*i), 10) }
+
+func uintConv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 0)
+	if err != nil {
+		return 0, err
+	}
+	return uint(v), nil
+}
+
+// GetUint return the uint value of a flag with the given name
+func (f *FlagSet) GetUint(name string) (uint, error) {
+	val, err := f.getFlagType(name, "uint", uintConv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint), nil
+}
 
 // UintVar defines a uint flag with specified name, default value, and usage string.
 // The argument p points to a uint variable in which to store the value of the flag.
@@ -27,7 +45,7 @@ func (f *FlagSet) UintVar(p *uint, name string, value uint, usage string) {
 	f.VarP(newUintValue(value, p), name, "", usage)
 }
 
-// Like UintVar, but accepts a shorthand letter that can be used after a single dash.
+// UintVarP is like UintVar, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) UintVarP(p *uint, name, shorthand string, value uint, usage string) {
 	f.VarP(newUintValue(value, p), name, shorthand, usage)
 }
@@ -38,7 +56,7 @@ func UintVar(p *uint, name string, value uint, usage string) {
 	CommandLine.VarP(newUintValue(value, p), name, "", usage)
 }
 
-// Like UintVar, but accepts a shorthand letter that can be used after a single dash.
+// UintVarP is like UintVar, but accepts a shorthand letter that can be used after a single dash.
 func UintVarP(p *uint, name, shorthand string, value uint, usage string) {
 	CommandLine.VarP(newUintValue(value, p), name, shorthand, usage)
 }
@@ -51,7 +69,7 @@ func (f *FlagSet) Uint(name string, value uint, usage string) *uint {
 	return p
 }
 
-// Like Uint, but accepts a shorthand letter that can be used after a single dash.
+// UintP is like Uint, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) UintP(name, shorthand string, value uint, usage string) *uint {
 	p := new(uint)
 	f.UintVarP(p, name, shorthand, value, usage)
@@ -64,7 +82,7 @@ func Uint(name string, value uint, usage string) *uint {
 	return CommandLine.UintP(name, "", value, usage)
 }
 
-// Like Uint, but accepts a shorthand letter that can be used after a single dash.
+// UintP is like Uint, but accepts a shorthand letter that can be used after a single dash.
 func UintP(name, shorthand string, value uint, usage string) *uint {
 	return CommandLine.UintP(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/victorhaggqvist/pflag/uint16.go b/vendor/github.com/spf13/pflag/uint16.go
index 182dc40..7e9914e 100644
--- a/vendor/github.com/victorhaggqvist/pflag/uint16.go
+++ b/vendor/github.com/spf13/pflag/uint16.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // -- uint16 value
 type uint16Value uint16
@@ -12,14 +9,34 @@ func newUint16Value(val uint16, p *uint16) *uint16Value {
 	*p = val
 	return (*uint16Value)(p)
 }
-func (i *uint16Value) String() string { return fmt.Sprintf("%d", *i) }
+
 func (i *uint16Value) Set(s string) error {
 	v, err := strconv.ParseUint(s, 0, 16)
 	*i = uint16Value(v)
 	return err
 }
-func (i *uint16Value) Get() interface{} {
-	return uint16(*i)
+
+func (i *uint16Value) Type() string {
+	return "uint16"
+}
+
+func (i *uint16Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
+
+func uint16Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 16)
+	if err != nil {
+		return 0, err
+	}
+	return uint16(v), nil
+}
+
+// GetUint16 return the uint16 value of a flag with the given name
+func (f *FlagSet) GetUint16(name string) (uint16, error) {
+	val, err := f.getFlagType(name, "uint16", uint16Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint16), nil
 }
 
 // Uint16Var defines a uint flag with specified name, default value, and usage string.
@@ -28,7 +45,7 @@ func (f *FlagSet) Uint16Var(p *uint16, name string, value uint16, usage string)
 	f.VarP(newUint16Value(value, p), name, "", usage)
 }
 
-// Like Uint16Var, but accepts a shorthand letter that can be used after a single dash.
+// Uint16VarP is like Uint16Var, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Uint16VarP(p *uint16, name, shorthand string, value uint16, usage string) {
 	f.VarP(newUint16Value(value, p), name, shorthand, usage)
 }
@@ -39,7 +56,7 @@ func Uint16Var(p *uint16, name string, value uint16, usage string) {
 	CommandLine.VarP(newUint16Value(value, p), name, "", usage)
 }
 
-// Like Uint16Var, but accepts a shorthand letter that can be used after a single dash.
+// Uint16VarP is like Uint16Var, but accepts a shorthand letter that can be used after a single dash.
 func Uint16VarP(p *uint16, name, shorthand string, value uint16, usage string) {
 	CommandLine.VarP(newUint16Value(value, p), name, shorthand, usage)
 }
@@ -52,7 +69,7 @@ func (f *FlagSet) Uint16(name string, value uint16, usage string) *uint16 {
 	return p
 }
 
-// Like Uint16, but accepts a shorthand letter that can be used after a single dash.
+// Uint16P is like Uint16, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Uint16P(name, shorthand string, value uint16, usage string) *uint16 {
 	p := new(uint16)
 	f.Uint16VarP(p, name, shorthand, value, usage)
@@ -65,7 +82,7 @@ func Uint16(name string, value uint16, usage string) *uint16 {
 	return CommandLine.Uint16P(name, "", value, usage)
 }
 
-// Like Uint16, but accepts a shorthand letter that can be used after a single dash.
+// Uint16P is like Uint16, but accepts a shorthand letter that can be used after a single dash.
 func Uint16P(name, shorthand string, value uint16, usage string) *uint16 {
 	return CommandLine.Uint16P(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/victorhaggqvist/pflag/uint32.go b/vendor/github.com/spf13/pflag/uint32.go
index 165c8b2..d802453 100644
--- a/vendor/github.com/victorhaggqvist/pflag/uint32.go
+++ b/vendor/github.com/spf13/pflag/uint32.go
@@ -1,25 +1,42 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
-// -- uint16 value
+// -- uint32 value
 type uint32Value uint32
 
 func newUint32Value(val uint32, p *uint32) *uint32Value {
 	*p = val
 	return (*uint32Value)(p)
 }
-func (i *uint32Value) String() string { return fmt.Sprintf("%d", *i) }
+
 func (i *uint32Value) Set(s string) error {
 	v, err := strconv.ParseUint(s, 0, 32)
 	*i = uint32Value(v)
 	return err
 }
-func (i *uint32Value) Get() interface{} {
-	return uint32(*i)
+
+func (i *uint32Value) Type() string {
+	return "uint32"
+}
+
+func (i *uint32Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
+
+func uint32Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return uint32(v), nil
+}
+
+// GetUint32 return the uint32 value of a flag with the given name
+func (f *FlagSet) GetUint32(name string) (uint32, error) {
+	val, err := f.getFlagType(name, "uint32", uint32Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint32), nil
 }
 
 // Uint32Var defines a uint32 flag with specified name, default value, and usage string.
@@ -28,7 +45,7 @@ func (f *FlagSet) Uint32Var(p *uint32, name string, value uint32, usage string)
 	f.VarP(newUint32Value(value, p), name, "", usage)
 }
 
-// Like Uint32Var, but accepts a shorthand letter that can be used after a single dash.
+// Uint32VarP is like Uint32Var, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Uint32VarP(p *uint32, name, shorthand string, value uint32, usage string) {
 	f.VarP(newUint32Value(value, p), name, shorthand, usage)
 }
@@ -39,7 +56,7 @@ func Uint32Var(p *uint32, name string, value uint32, usage string) {
 	CommandLine.VarP(newUint32Value(value, p), name, "", usage)
 }
 
-// Like Uint32Var, but accepts a shorthand letter that can be used after a single dash.
+// Uint32VarP is like Uint32Var, but accepts a shorthand letter that can be used after a single dash.
 func Uint32VarP(p *uint32, name, shorthand string, value uint32, usage string) {
 	CommandLine.VarP(newUint32Value(value, p), name, shorthand, usage)
 }
@@ -52,7 +69,7 @@ func (f *FlagSet) Uint32(name string, value uint32, usage string) *uint32 {
 	return p
 }
 
-// Like Uint32, but accepts a shorthand letter that can be used after a single dash.
+// Uint32P is like Uint32, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Uint32P(name, shorthand string, value uint32, usage string) *uint32 {
 	p := new(uint32)
 	f.Uint32VarP(p, name, shorthand, value, usage)
@@ -65,7 +82,7 @@ func Uint32(name string, value uint32, usage string) *uint32 {
 	return CommandLine.Uint32P(name, "", value, usage)
 }
 
-// Like Uint32, but accepts a shorthand letter that can be used after a single dash.
+// Uint32P is like Uint32, but accepts a shorthand letter that can be used after a single dash.
 func Uint32P(name, shorthand string, value uint32, usage string) *uint32 {
 	return CommandLine.Uint32P(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/victorhaggqvist/pflag/uint64.go b/vendor/github.com/spf13/pflag/uint64.go
index f41c5a2..f62240f 100644
--- a/vendor/github.com/victorhaggqvist/pflag/uint64.go
+++ b/vendor/github.com/spf13/pflag/uint64.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // -- uint64 Value
 type uint64Value uint64
@@ -19,7 +16,28 @@ func (i *uint64Value) Set(s string) error {
 	return err
 }
 
-func (i *uint64Value) String() string { return fmt.Sprintf("%v", *i) }
+func (i *uint64Value) Type() string {
+	return "uint64"
+}
+
+func (i *uint64Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
+
+func uint64Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 64)
+	if err != nil {
+		return 0, err
+	}
+	return uint64(v), nil
+}
+
+// GetUint64 return the uint64 value of a flag with the given name
+func (f *FlagSet) GetUint64(name string) (uint64, error) {
+	val, err := f.getFlagType(name, "uint64", uint64Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint64), nil
+}
 
 // Uint64Var defines a uint64 flag with specified name, default value, and usage string.
 // The argument p points to a uint64 variable in which to store the value of the flag.
@@ -27,7 +45,7 @@ func (f *FlagSet) Uint64Var(p *uint64, name string, value uint64, usage string)
 	f.VarP(newUint64Value(value, p), name, "", usage)
 }
 
-// Like Uint64Var, but accepts a shorthand letter that can be used after a single dash.
+// Uint64VarP is like Uint64Var, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Uint64VarP(p *uint64, name, shorthand string, value uint64, usage string) {
 	f.VarP(newUint64Value(value, p), name, shorthand, usage)
 }
@@ -38,7 +56,7 @@ func Uint64Var(p *uint64, name string, value uint64, usage string) {
 	CommandLine.VarP(newUint64Value(value, p), name, "", usage)
 }
 
-// Like Uint64Var, but accepts a shorthand letter that can be used after a single dash.
+// Uint64VarP is like Uint64Var, but accepts a shorthand letter that can be used after a single dash.
 func Uint64VarP(p *uint64, name, shorthand string, value uint64, usage string) {
 	CommandLine.VarP(newUint64Value(value, p), name, shorthand, usage)
 }
@@ -51,7 +69,7 @@ func (f *FlagSet) Uint64(name string, value uint64, usage string) *uint64 {
 	return p
 }
 
-// Like Uint64, but accepts a shorthand letter that can be used after a single dash.
+// Uint64P is like Uint64, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Uint64P(name, shorthand string, value uint64, usage string) *uint64 {
 	p := new(uint64)
 	f.Uint64VarP(p, name, shorthand, value, usage)
@@ -64,7 +82,7 @@ func Uint64(name string, value uint64, usage string) *uint64 {
 	return CommandLine.Uint64P(name, "", value, usage)
 }
 
-// Like Uint64, but accepts a shorthand letter that can be used after a single dash.
+// Uint64P is like Uint64, but accepts a shorthand letter that can be used after a single dash.
 func Uint64P(name, shorthand string, value uint64, usage string) *uint64 {
 	return CommandLine.Uint64P(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/victorhaggqvist/pflag/uint8.go b/vendor/github.com/spf13/pflag/uint8.go
index 174f99c..bb0e83c 100644
--- a/vendor/github.com/victorhaggqvist/pflag/uint8.go
+++ b/vendor/github.com/spf13/pflag/uint8.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // -- uint8 Value
 type uint8Value uint8
@@ -19,7 +16,28 @@ func (i *uint8Value) Set(s string) error {
 	return err
 }
 
-func (i *uint8Value) String() string { return fmt.Sprintf("%v", *i) }
+func (i *uint8Value) Type() string {
+	return "uint8"
+}
+
+func (i *uint8Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
+
+func uint8Conv(sval string) (interface{}, error) {
+	v, err := strconv.ParseUint(sval, 0, 8)
+	if err != nil {
+		return 0, err
+	}
+	return uint8(v), nil
+}
+
+// GetUint8 return the uint8 value of a flag with the given name
+func (f *FlagSet) GetUint8(name string) (uint8, error) {
+	val, err := f.getFlagType(name, "uint8", uint8Conv)
+	if err != nil {
+		return 0, err
+	}
+	return val.(uint8), nil
+}
 
 // Uint8Var defines a uint8 flag with specified name, default value, and usage string.
 // The argument p points to a uint8 variable in which to store the value of the flag.
@@ -27,7 +45,7 @@ func (f *FlagSet) Uint8Var(p *uint8, name string, value uint8, usage string) {
 	f.VarP(newUint8Value(value, p), name, "", usage)
 }
 
-// Like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
+// Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
 	f.VarP(newUint8Value(value, p), name, shorthand, usage)
 }
@@ -38,7 +56,7 @@ func Uint8Var(p *uint8, name string, value uint8, usage string) {
 	CommandLine.VarP(newUint8Value(value, p), name, "", usage)
 }
 
-// Like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
+// Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
 func Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
 	CommandLine.VarP(newUint8Value(value, p), name, shorthand, usage)
 }
@@ -51,7 +69,7 @@ func (f *FlagSet) Uint8(name string, value uint8, usage string) *uint8 {
 	return p
 }
 
-// Like Uint8, but accepts a shorthand letter that can be used after a single dash.
+// Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
 	p := new(uint8)
 	f.Uint8VarP(p, name, shorthand, value, usage)
@@ -64,7 +82,7 @@ func Uint8(name string, value uint8, usage string) *uint8 {
 	return CommandLine.Uint8P(name, "", value, usage)
 }
 
-// Like Uint8, but accepts a shorthand letter that can be used after a single dash.
+// Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
 func Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
 	return CommandLine.Uint8P(name, shorthand, value, usage)
 }
diff --git a/vendor/github.com/spf13/pflag/uint_slice.go b/vendor/github.com/spf13/pflag/uint_slice.go
new file mode 100644
index 0000000..5fa9248
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/uint_slice.go
@@ -0,0 +1,168 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- uintSlice Value
+type uintSliceValue struct {
+	value   *[]uint
+	changed bool
+}
+
+func newUintSliceValue(val []uint, p *[]uint) *uintSliceValue {
+	uisv := new(uintSliceValue)
+	uisv.value = p
+	*uisv.value = val
+	return uisv
+}
+
+func (s *uintSliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]uint, len(ss))
+	for i, d := range ss {
+		u, err := strconv.ParseUint(d, 10, 0)
+		if err != nil {
+			return err
+		}
+		out[i] = uint(u)
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *uintSliceValue) Type() string {
+	return "uintSlice"
+}
+
+func (s *uintSliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%d", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func (s *uintSliceValue) fromString(val string) (uint, error) {
+	t, err := strconv.ParseUint(val, 10, 0)
+	if err != nil {
+		return 0, err
+	}
+	return uint(t), nil
+}
+
+func (s *uintSliceValue) toString(val uint) string {
+	return fmt.Sprintf("%d", val)
+}
+
+func (s *uintSliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *uintSliceValue) Replace(val []string) error {
+	out := make([]uint, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *uintSliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func uintSliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []uint{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]uint, len(ss))
+	for i, d := range ss {
+		u, err := strconv.ParseUint(d, 10, 0)
+		if err != nil {
+			return nil, err
+		}
+		out[i] = uint(u)
+	}
+	return out, nil
+}
+
+// GetUintSlice returns the []uint value of a flag with the given name.
+func (f *FlagSet) GetUintSlice(name string) ([]uint, error) {
+	val, err := f.getFlagType(name, "uintSlice", uintSliceConv)
+	if err != nil {
+		return []uint{}, err
+	}
+	return val.([]uint), nil
+}
+
+// UintSliceVar defines a uintSlice flag with specified name, default value, and usage string.
+// The argument p points to a []uint variable in which to store the value of the flag.
+func (f *FlagSet) UintSliceVar(p *[]uint, name string, value []uint, usage string) {
+	f.VarP(newUintSliceValue(value, p), name, "", usage)
+}
+
+// UintSliceVarP is like UintSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) UintSliceVarP(p *[]uint, name, shorthand string, value []uint, usage string) {
+	f.VarP(newUintSliceValue(value, p), name, shorthand, usage)
+}
+
+// UintSliceVar defines a uint[] flag with specified name, default value, and usage string.
+// The argument p points to a uint[] variable in which to store the value of the flag.
+func UintSliceVar(p *[]uint, name string, value []uint, usage string) {
+	CommandLine.VarP(newUintSliceValue(value, p), name, "", usage)
+}
+
+// UintSliceVarP is like the UintSliceVar, but accepts a shorthand letter that can be used after a single dash.
+func UintSliceVarP(p *[]uint, name, shorthand string, value []uint, usage string) {
+	CommandLine.VarP(newUintSliceValue(value, p), name, shorthand, usage)
+}
+
+// UintSlice defines a []uint flag with specified name, default value, and usage string.
+// The return value is the address of a []uint variable that stores the value of the flag.
+func (f *FlagSet) UintSlice(name string, value []uint, usage string) *[]uint {
+	p := []uint{}
+	f.UintSliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// UintSliceP is like UintSlice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) UintSliceP(name, shorthand string, value []uint, usage string) *[]uint {
+	p := []uint{}
+	f.UintSliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// UintSlice defines a []uint flag with specified name, default value, and usage string.
+// The return value is the address of a []uint variable that stores the value of the flag.
+func UintSlice(name string, value []uint, usage string) *[]uint {
+	return CommandLine.UintSliceP(name, "", value, usage)
+}
+
+// UintSliceP is like UintSlice, but accepts a shorthand letter that can be used after a single dash.
+func UintSliceP(name, shorthand string, value []uint, usage string) *[]uint {
+	return CommandLine.UintSliceP(name, shorthand, value, usage)
+}
diff --git a/vendor/github.com/victorhaggqvist/pflag/README.md b/vendor/github.com/victorhaggqvist/pflag/README.md
deleted file mode 100644
index d9b189f..0000000
--- a/vendor/github.com/victorhaggqvist/pflag/README.md
+++ /dev/null
@@ -1,157 +0,0 @@
-[![Build Status](https://travis-ci.org/ogier/pflag.png?branch=master)](https://travis-ci.org/ogier/pflag)
-
-## Description
-
-pflag is a drop-in replacement for Go's flag package, implementing
-POSIX/GNU-style --flags.
-
-pflag is compatible with the [GNU extensions to the POSIX recommendations
-for command-line options][1]. For a more precise description, see the
-"Command-line flag syntax" section below.
-
-[1]: http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
-
-pflag is available under the same style of BSD license as the Go language,
-which can be found in the LICENSE file.
-
-## Installation
-
-pflag is available using the standard `go get` command.
-
-Install by running:
-
-    go get github.com/ogier/pflag
-
-Run tests by running:
-
-    go test github.com/ogier/pflag
-
-## Usage
-
-pflag is a drop-in replacement of Go's native flag package. If you import
-pflag under the name "flag" then all code should continue to function
-with no changes.
-
-``` go
-import flag "github.com/ogier/pflag"
-```
-
-There is one exception to this: if you directly instantiate the Flag struct
-there is one more field "Shorthand" that you will need to set.
-Most code never instantiates this struct directly, and instead uses
-functions such as String(), BoolVar(), and Var(), and is therefore
-unaffected.
-
-Define flags using flag.String(), Bool(), Int(), etc.
-
-This declares an integer flag, -flagname, stored in the pointer ip, with type *int.
-
-``` go
-var ip *int = flag.Int("flagname", 1234, "help message for flagname")
-```
-
-If you like, you can bind the flag to a variable using the Var() functions.
-
-``` go
-var flagvar int
-func init() {
-    flag.IntVar(&flagvar, "flagname", 1234, "help message for flagname")
-}
-```
-
-Or you can create custom flags that satisfy the Value interface (with
-pointer receivers) and couple them to flag parsing by
-
-``` go
-flag.Var(&flagVal, "name", "help message for flagname")
-```
-
-For such flags, the default value is just the initial value of the variable.
-
-After all flags are defined, call
-
-``` go
-flag.Parse()
-```
-
-to parse the command line into the defined flags.
-
-Flags may then be used directly. If you're using the flags themselves,
-they are all pointers; if you bind to variables, they're values.
-
-``` go
-fmt.Println("ip has value ", *ip)
-fmt.Println("flagvar has value ", flagvar)
-```
-
-After parsing, the arguments after the flag are available as the
-slice flag.Args() or individually as flag.Arg(i).
-The arguments are indexed from 0 through flag.NArg()-1.
-
-The pflag package also defines some new functions that are not in flag,
-that give one-letter shorthands for flags. You can use these by appending
-'P' to the name of any function that defines a flag.
-
-``` go
-var ip = flag.IntP("flagname", "f", 1234, "help message")
-var flagvar bool
-func init() {
-    flag.BoolVarP("boolname", "b", true, "help message")
-}
-flag.VarP(&flagVar, "varname", "v", 1234, "help message")
-```
-
-Shorthand letters can be used with single dashes on the command line.
-Boolean shorthand flags can be combined with other shorthand flags.
-
-The default set of command-line flags is controlled by
-top-level functions.  The FlagSet type allows one to define
-independent sets of flags, such as to implement subcommands
-in a command-line interface. The methods of FlagSet are
-analogous to the top-level functions for the command-line
-flag set.
-
-## Command line flag syntax
-
-```
---flag    // boolean flags only
---flag=x
-```
-
-Unlike the flag package, a single dash before an option means something
-different than a double dash. Single dashes signify a series of shorthand
-letters for flags. All but the last shorthand letter must be boolean flags.
-
-```
-// boolean flags
--f
--abc
-
-// non-boolean flags
--n 1234
--Ifile
-
-// mixed
--abcs "hello"
--abcn1234
-```
-
-Flag parsing stops after the terminator "--". Unlike the flag package,
-flags can be interspersed with arguments anywhere on the command line
-before this terminator.
-
-Integer flags accept 1234, 0664, 0x1234 and may be negative.
-Boolean flags (in their long form) accept 1, 0, t, f, true, false,
-TRUE, FALSE, True, False.
-Duration flags accept any input valid for time.ParseDuration.
-
-## More info
-
-You can see the full reference documentation of the pflag package
-[at godoc.org][3], or through go's standard documentation system by
-running `godoc -http=:6060` and browsing to
-[http://localhost:6060/pkg/github.com/ogier/pflag][2] after
-installation.
-
-[2]: http://localhost:6060/pkg/github.com/ogier/pflag
-[3]: http://godoc.org/github.com/ogier/pflag
diff --git a/vendor/github.com/victorhaggqvist/pflag/flag.go b/vendor/github.com/victorhaggqvist/pflag/flag.go
deleted file mode 100644
index cb0c6eb..0000000
--- a/vendor/github.com/victorhaggqvist/pflag/flag.go
+++ /dev/null
@@ -1,644 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-	pflag is a drop-in replacement for Go's flag package, implementing
-	POSIX/GNU-style --flags.
-
-	pflag is compatible with the GNU extensions to the POSIX recommendations
-	for command-line options. See
-	http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
-
-	Usage:
-
-	pflag is a drop-in replacement of Go's native flag package. If you import
-	pflag under the name "flag" then all code should continue to function
-	with no changes.
-
-		import flag "github.com/ogier/pflag"
-
-	There is one exception to this: if you directly instantiate the Flag struct
-	there is one more field "Shorthand" that you will need to set.
-	Most code never instantiates this struct directly, and instead uses
-	functions such as String(), BoolVar(), and Var(), and is therefore
-	unaffected.
-
-	Define flags using flag.String(), Bool(), Int(), etc.
-
-	This declares an integer flag, -flagname, stored in the pointer ip, with type *int.
-		var ip = flag.Int("flagname", 1234, "help message for flagname")
-	If you like, you can bind the flag to a variable using the Var() functions.
-		var flagvar int
-		func init() {
-			flag.IntVar(&flagvar, "flagname", 1234, "help message for flagname")
-		}
-	Or you can create custom flags that satisfy the Value interface (with
-	pointer receivers) and couple them to flag parsing by
-		flag.Var(&flagVal, "name", "help message for flagname")
-	For such flags, the default value is just the initial value of the variable.
-
-	After all flags are defined, call
-		flag.Parse()
-	to parse the command line into the defined flags.
-
-	Flags may then be used directly. If you're using the flags themselves,
-	they are all pointers; if you bind to variables, they're values.
-		fmt.Println("ip has value ", *ip)
-		fmt.Println("flagvar has value ", flagvar)
-
-	After parsing, the arguments after the flag are available as the
-	slice flag.Args() or individually as flag.Arg(i).
-	The arguments are indexed from 0 through flag.NArg()-1.
-
-	The pflag package also defines some new functions that are not in flag,
-	that give one-letter shorthands for flags. You can use these by appending
-	'P' to the name of any function that defines a flag.
-		var ip = flag.IntP("flagname", "f", 1234, "help message")
-		var flagvar bool
-		func init() {
-			flag.BoolVarP("boolname", "b", true, "help message")
-		}
-		flag.VarP(&flagVar, "varname", "v", 1234, "help message")
-	Shorthand letters can be used with single dashes on the command line.
-	Boolean shorthand flags can be combined with other shorthand flags.
-
-	Command line flag syntax:
-		--flag    // boolean flags only
-		--flag=x
-
-	Unlike the flag package, a single dash before an option means something
-	different than a double dash. Single dashes signify a series of shorthand
-	letters for flags. All but the last shorthand letter must be boolean flags.
-		// boolean flags
-		-f
-		-abc
-		// non-boolean flags
-		-n 1234
-		-Ifile
-		// mixed
-		-abcs "hello"
-		-abcn1234
-
-	Flag parsing stops after the terminator "--". Unlike the flag package,
-	flags can be interspersed with arguments anywhere on the command line
-	before this terminator.
-
-	Integer flags accept 1234, 0664, 0x1234 and may be negative.
-	Boolean flags (in their long form) accept 1, 0, t, f, true, false,
-	TRUE, FALSE, True, False.
-	Duration flags accept any input valid for time.ParseDuration.
-
-	The default set of command-line flags is controlled by
-	top-level functions.  The FlagSet type allows one to define
-	independent sets of flags, such as to implement subcommands
-	in a command-line interface. The methods of FlagSet are
-	analogous to the top-level functions for the command-line
-	flag set.
-*/
-package pflag
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"os"
-	"runtime"
-	"sort"
-	"strings"
-)
-
-// ErrHelp is the error returned if the flag -help is invoked but no such flag is defined.
-var ErrHelp = errors.New("pflag: help requested")
-
-// ErrorHandling defines how to handle flag parsing errors.
-type ErrorHandling int
-
-const (
-	ContinueOnError ErrorHandling = iota
-	ExitOnError
-	PanicOnError
-)
-
-// A FlagSet represents a set of defined flags.
-type FlagSet struct {
-	// Usage is the function called when an error occurs while parsing flags.
-	// The field is a function (not a method) that may be changed to point to
-	// a custom error handler.
-	Usage func()
-
-	name          string
-	parsed        bool
-	actual        map[string]*Flag
-	formal        map[string]*Flag
-	shorthands    map[byte]*Flag
-	args          []string // arguments after flags
-	exitOnError   bool     // does the program exit if there's an error?
-	errorHandling ErrorHandling
-	output        io.Writer // nil means stderr; use out() accessor
-	interspersed  bool      // allow interspersed option/non-option args
-}
-
-// A Flag represents the state of a flag.
-type Flag struct {
-	Name      string // name as it appears on command line
-	Shorthand string // one-letter abbreviated flag
-	Usage     string // help message
-	Value     Value  // value as set
-	DefValue  string // default value (as text); for usage message
-}
-
-// sortFlags returns the flags as a slice in lexicographical sorted order.
-func sortFlags(flags map[string]*Flag) []*Flag {
-	list := make(sort.StringSlice, len(flags))
-	i := 0
-	for _, f := range flags {
-		list[i] = f.Name
-		i++
-	}
-	list.Sort()
-	result := make([]*Flag, len(list))
-	for i, name := range list {
-		result[i] = flags[name]
-	}
-	return result
-}
-
-func (f *FlagSet) out() io.Writer {
-	if f.output == nil {
-		return os.Stderr
-	}
-	return f.output
-}
-
-// SetOutput sets the destination for usage and error messages.
-// If output is nil, os.Stderr is used.
-func (f *FlagSet) SetOutput(output io.Writer) {
-	f.output = output
-}
-
-// VisitAll visits the flags in lexicographical order, calling fn for each.
-// It visits all flags, even those not set.
-func (f *FlagSet) VisitAll(fn func(*Flag)) {
-	for _, flag := range sortFlags(f.formal) {
-		fn(flag)
-	}
-}
-
-// VisitAll visits the command-line flags in lexicographical order, calling
-// fn for each.  It visits all flags, even those not set.
-func VisitAll(fn func(*Flag)) {
-	CommandLine.VisitAll(fn)
-}
-
-// Visit visits the flags in lexicographical order, calling fn for each.
-// It visits only those flags that have been set.
-func (f *FlagSet) Visit(fn func(*Flag)) {
-	for _, flag := range sortFlags(f.actual) {
-		fn(flag)
-	}
-}
-
-// Visit visits the command-line flags in lexicographical order, calling fn
-// for each.  It visits only those flags that have been set.
-func Visit(fn func(*Flag)) {
-	CommandLine.Visit(fn)
-}
-
-// Lookup returns the Flag structure of the named flag, returning nil if none exists.
-func (f *FlagSet) Lookup(name string) *Flag {
-	return f.formal[name]
-}
-
-// Lookup returns the Flag structure of the named command-line flag,
-// returning nil if none exists.
-func Lookup(name string) *Flag {
-	return CommandLine.formal[name]
-}
-
-// Set sets the value of the named flag.
-func (f *FlagSet) Set(name, value string) error {
-	flag, ok := f.formal[name]
-	if !ok {
-		return fmt.Errorf("no such flag -%v", name)
-	}
-	err := flag.Value.Set(value)
-	if err != nil {
-		return err
-	}
-	if f.actual == nil {
-		f.actual = make(map[string]*Flag)
-	}
-	f.actual[name] = flag
-	return nil
-}
-
-// Set sets the value of the named command-line flag.
-func Set(name, value string) error {
-	return CommandLine.Set(name, value)
-}
-
-// isZeroValue guesses whether the string represents the zero
-// value for a flag. It is not accurate but in practice works OK.
-func isZeroValue(value string) bool {
-	switch value {
-	case "false":
-		return true
-	case "":
-		return true
-	case "0":
-		return true
-	}
-	return false
-}
-
-// UnquoteUsage extracts a back-quoted name from the usage
-// string for a flag and returns it and the un-quoted usage.
-// Given "a `name` to show" it returns ("name", "a name to show").
-// If there are no back quotes, the name is an educated guess of the
-// type of the flag's value, or the empty string if the flag is boolean.
-func UnquoteUsage(flag *Flag) (name string, usage string) {
-	// Look for a back-quoted name, but avoid the strings package.
-	usage = flag.Usage
-	for i := 0; i < len(usage); i++ {
-		if usage[i] == '`' {
-			for j := i + 1; j < len(usage); j++ {
-				if usage[j] == '`' {
-					name = usage[i+1 : j]
-					usage = usage[:i] + name + usage[j+1:]
-					return name, usage
-				}
-			}
-			break // Only one back quote; use type name.
-		}
-	}
-	// No explicit name, so use type if we can find one.
-	name = "value"
-	switch flag.Value.(type) {
-	case boolFlag:
-		name = ""
-	case *durationValue:
-		name = "duration"
-	case *float64Value:
-		name = "float"
-	case *intValue, *int64Value:
-		name = "int"
-	case *stringValue:
-		name = "string"
-	case *uintValue, *uint64Value:
-		name = "uint"
-	}
-	return
-}
-
-// PrintDefaults prints to standard error the default values of all
-// defined command-line flags in the set. See the documentation for
-// the global function PrintDefaults for more information.
-func (f *FlagSet) PrintDefaults() {
-	f.VisitAll(func(flag *Flag) {
-		s := ""
-		if len(flag.Shorthand) > 0 {
-			s = fmt.Sprintf("  -%s, --%s", flag.Shorthand, flag.Name)
-		} else {
-			s = fmt.Sprintf("  --%s", flag.Name)
-		}
-
-		name, usage := UnquoteUsage(flag)
-		if len(name) > 0 {
-			s += " " + name
-		}
-
-		s += "\n    \t"
-		s += usage
-		if !isZeroValue(flag.DefValue) {
-			if _, ok := flag.Value.(*stringValue); ok {
-				// put quotes on the value
-				s += fmt.Sprintf(" (default %q)", flag.DefValue)
-			} else {
-				s += fmt.Sprintf(" (default %v)", flag.DefValue)
-			}
-		}
-		fmt.Fprint(f.out(), s, "\n")
-	})
-}
-
-// PrintDefaults prints to standard error the default values of all defined command-line flags.
-func PrintDefaults() {
-	CommandLine.PrintDefaults()
-}
-
-// defaultUsage is the default function to print a usage message.
-func defaultUsage(f *FlagSet) {
-	if f.name == "" {
-		fmt.Fprintf(f.out(), "Usage:\n")
-	} else {
-		fmt.Fprintf(f.out(), "Usage of %s:\n", f.name)
-	}
-	f.PrintDefaults()
-}
-
-// NOTE: Usage is not just defaultUsage(CommandLine)
-// because it serves (via godoc flag Usage) as the example
-// for how to write your own usage function.
-
-// Usage prints to standard error a usage message documenting all defined command-line flags.
-// The function is a variable that may be changed to point to a custom function.
-var Usage = func() {
-	fmt.Fprintf(os.Stderr, "Usage of %s:\n", os.Args[0])
-	PrintDefaults()
-}
-
-// If defined, the flag --version will print version information
-var Version string
-
-// NFlag returns the number of flags that have been set.
-func (f *FlagSet) NFlag() int { return len(f.actual) }
-
-// NFlag returns the number of command-line flags that have been set.
-func NFlag() int { return len(CommandLine.actual) }
-
-// Arg returns the i'th argument.  Arg(0) is the first remaining argument
-// after flags have been processed.
-func (f *FlagSet) Arg(i int) string {
-	if i < 0 || i >= len(f.args) {
-		return ""
-	}
-	return f.args[i]
-}
-
-// Arg returns the i'th command-line argument.  Arg(0) is the first remaining argument
-// after flags have been processed.
-func Arg(i int) string {
-	return CommandLine.Arg(i)
-}
-
-// NArg is the number of arguments remaining after flags have been processed.
-func (f *FlagSet) NArg() int { return len(f.args) }
-
-// NArg is the number of arguments remaining after flags have been processed.
-func NArg() int { return len(CommandLine.args) }
-
-// Args returns the non-flag arguments.
-func (f *FlagSet) Args() []string { return f.args }
-
-// Args returns the non-flag command-line arguments.
-func Args() []string { return CommandLine.args }
-
-// Var defines a flag with the specified name and usage string. The type and
-// value of the flag are represented by the first argument, of type Value, which
-// typically holds a user-defined implementation of Value. For instance, the
-// caller could create a flag that turns a comma-separated string into a slice
-// of strings by giving the slice the methods of Value; in particular, Set would
-// decompose the comma-separated string into the slice.
-func (f *FlagSet) Var(value Value, name string, usage string) {
-	f.VarP(value, name, "", usage)
-}
-
-// Like Var, but accepts a shorthand letter that can be used after a single dash.
-func (f *FlagSet) VarP(value Value, name, shorthand, usage string) {
-	// Remember the default value as a string; it won't change.
-	flag := &Flag{name, shorthand, usage, value, value.String()}
-	_, alreadythere := f.formal[name]
-	if alreadythere {
-		msg := fmt.Sprintf("%s flag redefined: %s", f.name, name)
-		fmt.Fprintln(f.out(), msg)
-		panic(msg) // Happens only if flags are declared with identical names
-	}
-	if f.formal == nil {
-		f.formal = make(map[string]*Flag)
-	}
-	f.formal[name] = flag
-
-	if len(shorthand) == 0 {
-		return
-	}
-	if len(shorthand) > 1 {
-		fmt.Fprintf(f.out(), "%s shorthand more than ASCII character: %s\n", f.name, shorthand)
-		panic("shorthand is more than one character")
-	}
-	if f.shorthands == nil {
-		f.shorthands = make(map[byte]*Flag)
-	}
-	c := shorthand[0]
-	old, alreadythere := f.shorthands[c]
-	if alreadythere {
-		fmt.Fprintf(f.out(), "%s shorthand reused: %q for %s already used for %s\n", f.name, c, name, old.Name)
-		panic("shorthand redefinition")
-	}
-	f.shorthands[c] = flag
-}
-
-// Var defines a flag with the specified name and usage string. The type and
-// value of the flag are represented by the first argument, of type Value, which
-// typically holds a user-defined implementation of Value. For instance, the
-// caller could create a flag that turns a comma-separated string into a slice
-// of strings by giving the slice the methods of Value; in particular, Set would
-// decompose the comma-separated string into the slice.
-func Var(value Value, name string, usage string) {
-	CommandLine.VarP(value, name, "", usage)
-}
-
-// Like Var, but accepts a shorthand letter that can be used after a single dash.
-func VarP(value Value, name, shorthand, usage string) {
-	CommandLine.VarP(value, name, shorthand, usage)
-}
-
-// failf prints to standard error a formatted error and usage message and
-// returns the error.
-func (f *FlagSet) failf(format string, a ...interface{}) error {
-	err := fmt.Errorf(format, a...)
-	fmt.Fprintln(f.out(), err)
-	f.usage()
-	return err
-}
-
-// usage calls the Usage method for the flag set, or the usage function if
-// the flag set is CommandLine.
-func (f *FlagSet) usage() {
-	if f == CommandLine {
-		Usage()
-	} else if f.Usage == nil {
-		defaultUsage(f)
-	} else {
-		f.Usage()
-	}
-}
-
-func (f *FlagSet) version() {
-	if Version != "" {
-		fmt.Fprintf(os.Stderr, "%s v%s (%s/%s/%s)\n", os.Args[0], Version, runtime.GOOS, runtime.GOARCH, runtime.Version())
-	}
-}
-
-func PrintVersion() {
-	CommandLine.version()
-}
-
-func (f *FlagSet) setFlag(flag *Flag, value string, origArg string) error {
-	if err := flag.Value.Set(value); err != nil {
-		return f.failf("invalid argument %q for %s: %v", value, origArg, err)
-	}
-	// mark as visited for Visit()
-	if f.actual == nil {
-		f.actual = make(map[string]*Flag)
-	}
-	f.actual[flag.Name] = flag
-
-	return nil
-}
-
-func (f *FlagSet) parseArgs(args []string) error {
-	for len(args) > 0 {
-		s := args[0]
-		args = args[1:]
-		if len(s) == 0 || s[0] != '-' || len(s) == 1 {
-			if !f.interspersed {
-				f.args = append(f.args, s)
-				f.args = append(f.args, args...)
-				return nil
-			}
-			f.args = append(f.args, s)
-			continue
-		}
-
-		if s[1] == '-' {
-			if len(s) == 2 { // "--" terminates the flags
-				f.args = append(f.args, args...)
-				return nil
-			}
-			name := s[2:]
-			if len(name) == 0 || name[0] == '-' || name[0] == '=' {
-				return f.failf("bad flag syntax: %s", s)
-			}
-			split := strings.SplitN(name, "=", 2)
-			name = split[0]
-			m := f.formal
-			flag, alreadythere := m[name] // BUG
-			if !alreadythere {
-				if name == "help" { // special case for nice help message.
-					f.usage()
-					return ErrHelp
-				} else if name == "version" { // special case for nice version string
-					f.version()
-					return ErrHelp
-				}
-				return f.failf("unknown flag: --%s", name)
-			}
-			if len(split) == 1 {
-				if bv, ok := flag.Value.(boolFlag); !ok || !bv.IsBoolFlag() {
-					return f.failf("flag needs an argument: %s", s)
-				}
-				f.setFlag(flag, "true", s)
-			} else {
-				if err := f.setFlag(flag, split[1], s); err != nil {
-					return err
-				}
-			}
-		} else {
-			shorthands := s[1:]
-			for i := 0; i < len(shorthands); i++ {
-				c := shorthands[i]
-				flag, alreadythere := f.shorthands[c]
-				if !alreadythere {
-					if c == 'h' { // special case for nice help message.
-						f.usage()
-						return ErrHelp
-					} else if c == 'V' { // special case for nice version string
-						f.version()
-						return ErrHelp
-					}
-					return f.failf("unknown shorthand flag: %q in -%s", c, shorthands)
-				}
-				if bv, ok := flag.Value.(boolFlag); ok && bv.IsBoolFlag() {
-					f.setFlag(flag, "true", s)
-					continue
-				}
-				if i < len(shorthands)-1 {
-					if err := f.setFlag(flag, shorthands[i+1:], s); err != nil {
-						return err
-					}
-					break
-				}
-				if len(args) == 0 {
-					return f.failf("flag needs an argument: %q in -%s", c, shorthands)
-				}
-				if err := f.setFlag(flag, args[0], s); err != nil {
-					return err
-				}
-				args = args[1:]
-				break // should be unnecessary
-			}
-		}
-	}
-	return nil
-}
-
-// Parse parses flag definitions from the argument list, which should not
-// include the command name.  Must be called after all flags in the FlagSet
-// are defined and before flags are accessed by the program.
-// The return value will be ErrHelp if -help was set but not defined.
-func (f *FlagSet) Parse(arguments []string) error {
-	f.parsed = true
-	f.args = make([]string, 0, len(arguments))
-	err := f.parseArgs(arguments)
-	if err != nil {
-		switch f.errorHandling {
-		case ContinueOnError:
-			return err
-		case ExitOnError:
-			os.Exit(2)
-		case PanicOnError:
-			panic(err)
-		}
-	}
-	return nil
-}
-
-// Parsed reports whether f.Parse has been called.
-func (f *FlagSet) Parsed() bool {
-	return f.parsed
-}
-
-// Parse parses the command-line flags from os.Args[1:].  Must be called
-// after all flags are defined and before flags are accessed by the program.
-func Parse() {
-	// Ignore errors; CommandLine is set for ExitOnError.
-	CommandLine.Parse(os.Args[1:])
-}
-
-// Whether to support interspersed option/non-option arguments.
-func SetInterspersed(interspersed bool) {
-	CommandLine.SetInterspersed(interspersed)
-}
-
-// Parsed returns true if the command-line flags have been parsed.
-func Parsed() bool {
-	return CommandLine.Parsed()
-}
-
-// The default set of command-line flags, parsed from os.Args.
-var CommandLine = NewFlagSet(os.Args[0], ExitOnError)
-
-// NewFlagSet returns a new, empty flag set with the specified name and
-// error handling property.
-func NewFlagSet(name string, errorHandling ErrorHandling) *FlagSet {
-	f := &FlagSet{
-		name:          name,
-		errorHandling: errorHandling,
-		interspersed:  true,
-	}
-	return f
-}
-
-// Whether to support interspersed option/non-option arguments.
-func (f *FlagSet) SetInterspersed(interspersed bool) {
-	f.interspersed = interspersed
-}
-
-// Init sets the name and error handling property for a flag set.
-// By default, the zero FlagSet uses an empty name and the
-// ContinueOnError error handling policy.
-func (f *FlagSet) Init(name string, errorHandling ErrorHandling) {
-	f.name = name
-	f.errorHandling = errorHandling
-}