diff --git a/vendor/github.com/ghodss/yaml/.gitignore b/vendor/github.com/ghodss/yaml/.gitignore
deleted file mode 100644
index e256a31..0000000
--- a/vendor/github.com/ghodss/yaml/.gitignore
+++ /dev/null
@@ -1,20 +0,0 @@
-# OSX leaves these everywhere on SMB shares
-._*
-
-# Eclipse files
-.classpath
-.project
-.settings/**
-
-# Emacs save files
-*~
-
-# Vim-related files
-[._]*.s[a-w][a-z]
-[._]s[a-w][a-z]
-*.un~
-Session.vim
-.netrwhist
-
-# Go test binaries
-*.test
diff --git a/vendor/github.com/ghodss/yaml/.travis.yml b/vendor/github.com/ghodss/yaml/.travis.yml
deleted file mode 100644
index 0e9d6ed..0000000
--- a/vendor/github.com/ghodss/yaml/.travis.yml
+++ /dev/null
@@ -1,7 +0,0 @@
-language: go
-go:
-  - 1.3
-  - 1.4
-script:
-  - go test
-  - go build
diff --git a/vendor/github.com/ghodss/yaml/LICENSE b/vendor/github.com/ghodss/yaml/LICENSE
deleted file mode 100644
index 7805d36..0000000
--- a/vendor/github.com/ghodss/yaml/LICENSE
+++ /dev/null
@@ -1,50 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Sam Ghods
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-
-Copyright (c) 2012 The Go Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-   * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-   * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/ghodss/yaml/README.md b/vendor/github.com/ghodss/yaml/README.md
deleted file mode 100644
index 0200f75..0000000
--- a/vendor/github.com/ghodss/yaml/README.md
+++ /dev/null
@@ -1,121 +0,0 @@
-# YAML marshaling and unmarshaling support for Go
-
-[![Build Status](https://travis-ci.org/ghodss/yaml.svg)](https://travis-ci.org/ghodss/yaml)
-
-## Introduction
-
-A wrapper around [go-yaml](https://github.com/go-yaml/yaml) designed to enable a better way of handling YAML when marshaling to and from structs.
-
-In short, this library first converts YAML to JSON using go-yaml and then uses `json.Marshal` and `json.Unmarshal` to convert to or from the struct. This means that it effectively reuses the JSON struct tags as well as the custom JSON methods `MarshalJSON` and `UnmarshalJSON` unlike go-yaml. For a detailed overview of the rationale behind this method, [see this blog post](http://ghodss.com/2014/the-right-way-to-handle-yaml-in-golang/).
-
-## Compatibility
-
-This package uses [go-yaml](https://github.com/go-yaml/yaml) and therefore supports [everything go-yaml supports](https://github.com/go-yaml/yaml#compatibility).
-
-## Caveats
-
-**Caveat #1:** When using `yaml.Marshal` and `yaml.Unmarshal`, binary data should NOT be preceded with the `!!binary` YAML tag. If you do, go-yaml will convert the binary data from base64 to native binary data, which is not compatible with JSON. You can still use binary in your YAML files though - just store them without the `!!binary` tag and decode the base64 in your code (e.g. in the custom JSON methods `MarshalJSON` and `UnmarshalJSON`). This also has the benefit that your YAML and your JSON binary data will be decoded exactly the same way. As an example:
-
-```
-BAD:
-	exampleKey: !!binary gIGC
-
-GOOD:
-	exampleKey: gIGC
-... and decode the base64 data in your code.
-```
-
-**Caveat #2:** When using `YAMLToJSON` directly, maps with keys that are maps will result in an error since this is not supported by JSON. This error will occur in `Unmarshal` as well since you can't unmarshal map keys anyways since struct fields can't be keys.
-
-## Installation and usage
-
-To install, run:
-
-```
-$ go get github.com/ghodss/yaml
-```
-
-And import using:
-
-```
-import "github.com/ghodss/yaml"
-```
-
-Usage is very similar to the JSON library:
-
-```go
-package main
-
-import (
-	"fmt"
-
-	"github.com/ghodss/yaml"
-)
-
-type Person struct {
-	Name string `json:"name"` // Affects YAML field names too.
-	Age  int    `json:"age"`
-}
-
-func main() {
-	// Marshal a Person struct to YAML.
-	p := Person{"John", 30}
-	y, err := yaml.Marshal(p)
-	if err != nil {
-		fmt.Printf("err: %v\n", err)
-		return
-	}
-	fmt.Println(string(y))
-	/* Output:
-	age: 30
-	name: John
-	*/
-
-	// Unmarshal the YAML back into a Person struct.
-	var p2 Person
-	err = yaml.Unmarshal(y, &p2)
-	if err != nil {
-		fmt.Printf("err: %v\n", err)
-		return
-	}
-	fmt.Println(p2)
-	/* Output:
-	{John 30}
-	*/
-}
-```
-
-`yaml.YAMLToJSON` and `yaml.JSONToYAML` methods are also available:
-
-```go
-package main
-
-import (
-	"fmt"
-
-	"github.com/ghodss/yaml"
-)
-
-func main() {
-	j := []byte(`{"name": "John", "age": 30}`)
-	y, err := yaml.JSONToYAML(j)
-	if err != nil {
-		fmt.Printf("err: %v\n", err)
-		return
-	}
-	fmt.Println(string(y))
-	/* Output:
-	name: John
-	age: 30
-	*/
-	j2, err := yaml.YAMLToJSON(y)
-	if err != nil {
-		fmt.Printf("err: %v\n", err)
-		return
-	}
-	fmt.Println(string(j2))
-	/* Output:
-	{"age":30,"name":"John"}
-	*/
-}
-```
diff --git a/vendor/github.com/ghodss/yaml/fields.go b/vendor/github.com/ghodss/yaml/fields.go
deleted file mode 100644
index 5860074..0000000
--- a/vendor/github.com/ghodss/yaml/fields.go
+++ /dev/null
@@ -1,501 +0,0 @@
-// Copyright 2013 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 yaml
-
-import (
-	"bytes"
-	"encoding"
-	"encoding/json"
-	"reflect"
-	"sort"
-	"strings"
-	"sync"
-	"unicode"
-	"unicode/utf8"
-)
-
-// indirect walks down v allocating pointers as needed,
-// until it gets to a non-pointer.
-// if it encounters an Unmarshaler, indirect stops and returns that.
-// if decodingNull is true, indirect stops at the last pointer so it can be set to nil.
-func indirect(v reflect.Value, decodingNull bool) (json.Unmarshaler, encoding.TextUnmarshaler, reflect.Value) {
-	// If v is a named type and is addressable,
-	// start with its address, so that if the type has pointer methods,
-	// we find them.
-	if v.Kind() != reflect.Ptr && v.Type().Name() != "" && v.CanAddr() {
-		v = v.Addr()
-	}
-	for {
-		// Load value from interface, but only if the result will be
-		// usefully addressable.
-		if v.Kind() == reflect.Interface && !v.IsNil() {
-			e := v.Elem()
-			if e.Kind() == reflect.Ptr && !e.IsNil() && (!decodingNull || e.Elem().Kind() == reflect.Ptr) {
-				v = e
-				continue
-			}
-		}
-
-		if v.Kind() != reflect.Ptr {
-			break
-		}
-
-		if v.Elem().Kind() != reflect.Ptr && decodingNull && v.CanSet() {
-			break
-		}
-		if v.IsNil() {
-			if v.CanSet() {
-				v.Set(reflect.New(v.Type().Elem()))
-			} else {
-				v = reflect.New(v.Type().Elem())
-			}
-		}
-		if v.Type().NumMethod() > 0 {
-			if u, ok := v.Interface().(json.Unmarshaler); ok {
-				return u, nil, reflect.Value{}
-			}
-			if u, ok := v.Interface().(encoding.TextUnmarshaler); ok {
-				return nil, u, reflect.Value{}
-			}
-		}
-		v = v.Elem()
-	}
-	return nil, nil, v
-}
-
-// A field represents a single field found in a struct.
-type field struct {
-	name      string
-	nameBytes []byte                 // []byte(name)
-	equalFold func(s, t []byte) bool // bytes.EqualFold or equivalent
-
-	tag       bool
-	index     []int
-	typ       reflect.Type
-	omitEmpty bool
-	quoted    bool
-}
-
-func fillField(f field) field {
-	f.nameBytes = []byte(f.name)
-	f.equalFold = foldFunc(f.nameBytes)
-	return f
-}
-
-// byName sorts field by name, breaking ties with depth,
-// then breaking ties with "name came from json tag", then
-// breaking ties with index sequence.
-type byName []field
-
-func (x byName) Len() int { return len(x) }
-
-func (x byName) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
-
-func (x byName) Less(i, j int) bool {
-	if x[i].name != x[j].name {
-		return x[i].name < x[j].name
-	}
-	if len(x[i].index) != len(x[j].index) {
-		return len(x[i].index) < len(x[j].index)
-	}
-	if x[i].tag != x[j].tag {
-		return x[i].tag
-	}
-	return byIndex(x).Less(i, j)
-}
-
-// byIndex sorts field by index sequence.
-type byIndex []field
-
-func (x byIndex) Len() int { return len(x) }
-
-func (x byIndex) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
-
-func (x byIndex) Less(i, j int) bool {
-	for k, xik := range x[i].index {
-		if k >= len(x[j].index) {
-			return false
-		}
-		if xik != x[j].index[k] {
-			return xik < x[j].index[k]
-		}
-	}
-	return len(x[i].index) < len(x[j].index)
-}
-
-// typeFields returns a list of fields that JSON should recognize for the given type.
-// The algorithm is breadth-first search over the set of structs to include - the top struct
-// and then any reachable anonymous structs.
-func typeFields(t reflect.Type) []field {
-	// Anonymous fields to explore at the current level and the next.
-	current := []field{}
-	next := []field{{typ: t}}
-
-	// Count of queued names for current level and the next.
-	count := map[reflect.Type]int{}
-	nextCount := map[reflect.Type]int{}
-
-	// Types already visited at an earlier level.
-	visited := map[reflect.Type]bool{}
-
-	// Fields found.
-	var fields []field
-
-	for len(next) > 0 {
-		current, next = next, current[:0]
-		count, nextCount = nextCount, map[reflect.Type]int{}
-
-		for _, f := range current {
-			if visited[f.typ] {
-				continue
-			}
-			visited[f.typ] = true
-
-			// Scan f.typ for fields to include.
-			for i := 0; i < f.typ.NumField(); i++ {
-				sf := f.typ.Field(i)
-				if sf.PkgPath != "" { // unexported
-					continue
-				}
-				tag := sf.Tag.Get("json")
-				if tag == "-" {
-					continue
-				}
-				name, opts := parseTag(tag)
-				if !isValidTag(name) {
-					name = ""
-				}
-				index := make([]int, len(f.index)+1)
-				copy(index, f.index)
-				index[len(f.index)] = i
-
-				ft := sf.Type
-				if ft.Name() == "" && ft.Kind() == reflect.Ptr {
-					// Follow pointer.
-					ft = ft.Elem()
-				}
-
-				// Record found field and index sequence.
-				if name != "" || !sf.Anonymous || ft.Kind() != reflect.Struct {
-					tagged := name != ""
-					if name == "" {
-						name = sf.Name
-					}
-					fields = append(fields, fillField(field{
-						name:      name,
-						tag:       tagged,
-						index:     index,
-						typ:       ft,
-						omitEmpty: opts.Contains("omitempty"),
-						quoted:    opts.Contains("string"),
-					}))
-					if count[f.typ] > 1 {
-						// If there were multiple instances, add a second,
-						// so that the annihilation code will see a duplicate.
-						// It only cares about the distinction between 1 or 2,
-						// so don't bother generating any more copies.
-						fields = append(fields, fields[len(fields)-1])
-					}
-					continue
-				}
-
-				// Record new anonymous struct to explore in next round.
-				nextCount[ft]++
-				if nextCount[ft] == 1 {
-					next = append(next, fillField(field{name: ft.Name(), index: index, typ: ft}))
-				}
-			}
-		}
-	}
-
-	sort.Sort(byName(fields))
-
-	// Delete all fields that are hidden by the Go rules for embedded fields,
-	// except that fields with JSON tags are promoted.
-
-	// The fields are sorted in primary order of name, secondary order
-	// of field index length. Loop over names; for each name, delete
-	// hidden fields by choosing the one dominant field that survives.
-	out := fields[:0]
-	for advance, i := 0, 0; i < len(fields); i += advance {
-		// One iteration per name.
-		// Find the sequence of fields with the name of this first field.
-		fi := fields[i]
-		name := fi.name
-		for advance = 1; i+advance < len(fields); advance++ {
-			fj := fields[i+advance]
-			if fj.name != name {
-				break
-			}
-		}
-		if advance == 1 { // Only one field with this name
-			out = append(out, fi)
-			continue
-		}
-		dominant, ok := dominantField(fields[i : i+advance])
-		if ok {
-			out = append(out, dominant)
-		}
-	}
-
-	fields = out
-	sort.Sort(byIndex(fields))
-
-	return fields
-}
-
-// dominantField looks through the fields, all of which are known to
-// have the same name, to find the single field that dominates the
-// others using Go's embedding rules, modified by the presence of
-// JSON tags. If there are multiple top-level fields, the boolean
-// will be false: This condition is an error in Go and we skip all
-// the fields.
-func dominantField(fields []field) (field, bool) {
-	// The fields are sorted in increasing index-length order. The winner
-	// must therefore be one with the shortest index length. Drop all
-	// longer entries, which is easy: just truncate the slice.
-	length := len(fields[0].index)
-	tagged := -1 // Index of first tagged field.
-	for i, f := range fields {
-		if len(f.index) > length {
-			fields = fields[:i]
-			break
-		}
-		if f.tag {
-			if tagged >= 0 {
-				// Multiple tagged fields at the same level: conflict.
-				// Return no field.
-				return field{}, false
-			}
-			tagged = i
-		}
-	}
-	if tagged >= 0 {
-		return fields[tagged], true
-	}
-	// All remaining fields have the same length. If there's more than one,
-	// we have a conflict (two fields named "X" at the same level) and we
-	// return no field.
-	if len(fields) > 1 {
-		return field{}, false
-	}
-	return fields[0], true
-}
-
-var fieldCache struct {
-	sync.RWMutex
-	m map[reflect.Type][]field
-}
-
-// cachedTypeFields is like typeFields but uses a cache to avoid repeated work.
-func cachedTypeFields(t reflect.Type) []field {
-	fieldCache.RLock()
-	f := fieldCache.m[t]
-	fieldCache.RUnlock()
-	if f != nil {
-		return f
-	}
-
-	// Compute fields without lock.
-	// Might duplicate effort but won't hold other computations back.
-	f = typeFields(t)
-	if f == nil {
-		f = []field{}
-	}
-
-	fieldCache.Lock()
-	if fieldCache.m == nil {
-		fieldCache.m = map[reflect.Type][]field{}
-	}
-	fieldCache.m[t] = f
-	fieldCache.Unlock()
-	return f
-}
-
-func isValidTag(s string) bool {
-	if s == "" {
-		return false
-	}
-	for _, c := range s {
-		switch {
-		case strings.ContainsRune("!#$%&()*+-./:<=>?@[]^_{|}~ ", c):
-			// Backslash and quote chars are reserved, but
-			// otherwise any punctuation chars are allowed
-			// in a tag name.
-		default:
-			if !unicode.IsLetter(c) && !unicode.IsDigit(c) {
-				return false
-			}
-		}
-	}
-	return true
-}
-
-const (
-	caseMask     = ^byte(0x20) // Mask to ignore case in ASCII.
-	kelvin       = '\u212a'
-	smallLongEss = '\u017f'
-)
-
-// foldFunc returns one of four different case folding equivalence
-// functions, from most general (and slow) to fastest:
-//
-// 1) bytes.EqualFold, if the key s contains any non-ASCII UTF-8
-// 2) equalFoldRight, if s contains special folding ASCII ('k', 'K', 's', 'S')
-// 3) asciiEqualFold, no special, but includes non-letters (including _)
-// 4) simpleLetterEqualFold, no specials, no non-letters.
-//
-// The letters S and K are special because they map to 3 runes, not just 2:
-//  * S maps to s and to U+017F 'ſ' Latin small letter long s
-//  * k maps to K and to U+212A 'K' Kelvin sign
-// See http://play.golang.org/p/tTxjOc0OGo
-//
-// The returned function is specialized for matching against s and
-// should only be given s. It's not curried for performance reasons.
-func foldFunc(s []byte) func(s, t []byte) bool {
-	nonLetter := false
-	special := false // special letter
-	for _, b := range s {
-		if b >= utf8.RuneSelf {
-			return bytes.EqualFold
-		}
-		upper := b & caseMask
-		if upper < 'A' || upper > 'Z' {
-			nonLetter = true
-		} else if upper == 'K' || upper == 'S' {
-			// See above for why these letters are special.
-			special = true
-		}
-	}
-	if special {
-		return equalFoldRight
-	}
-	if nonLetter {
-		return asciiEqualFold
-	}
-	return simpleLetterEqualFold
-}
-
-// equalFoldRight is a specialization of bytes.EqualFold when s is
-// known to be all ASCII (including punctuation), but contains an 's',
-// 'S', 'k', or 'K', requiring a Unicode fold on the bytes in t.
-// See comments on foldFunc.
-func equalFoldRight(s, t []byte) bool {
-	for _, sb := range s {
-		if len(t) == 0 {
-			return false
-		}
-		tb := t[0]
-		if tb < utf8.RuneSelf {
-			if sb != tb {
-				sbUpper := sb & caseMask
-				if 'A' <= sbUpper && sbUpper <= 'Z' {
-					if sbUpper != tb&caseMask {
-						return false
-					}
-				} else {
-					return false
-				}
-			}
-			t = t[1:]
-			continue
-		}
-		// sb is ASCII and t is not. t must be either kelvin
-		// sign or long s; sb must be s, S, k, or K.
-		tr, size := utf8.DecodeRune(t)
-		switch sb {
-		case 's', 'S':
-			if tr != smallLongEss {
-				return false
-			}
-		case 'k', 'K':
-			if tr != kelvin {
-				return false
-			}
-		default:
-			return false
-		}
-		t = t[size:]
-
-	}
-	if len(t) > 0 {
-		return false
-	}
-	return true
-}
-
-// asciiEqualFold is a specialization of bytes.EqualFold for use when
-// s is all ASCII (but may contain non-letters) and contains no
-// special-folding letters.
-// See comments on foldFunc.
-func asciiEqualFold(s, t []byte) bool {
-	if len(s) != len(t) {
-		return false
-	}
-	for i, sb := range s {
-		tb := t[i]
-		if sb == tb {
-			continue
-		}
-		if ('a' <= sb && sb <= 'z') || ('A' <= sb && sb <= 'Z') {
-			if sb&caseMask != tb&caseMask {
-				return false
-			}
-		} else {
-			return false
-		}
-	}
-	return true
-}
-
-// simpleLetterEqualFold is a specialization of bytes.EqualFold for
-// use when s is all ASCII letters (no underscores, etc) and also
-// doesn't contain 'k', 'K', 's', or 'S'.
-// See comments on foldFunc.
-func simpleLetterEqualFold(s, t []byte) bool {
-	if len(s) != len(t) {
-		return false
-	}
-	for i, b := range s {
-		if b&caseMask != t[i]&caseMask {
-			return false
-		}
-	}
-	return true
-}
-
-// tagOptions is the string following a comma in a struct field's "json"
-// tag, or the empty string. It does not include the leading comma.
-type tagOptions string
-
-// parseTag splits a struct field's json tag into its name and
-// comma-separated options.
-func parseTag(tag string) (string, tagOptions) {
-	if idx := strings.Index(tag, ","); idx != -1 {
-		return tag[:idx], tagOptions(tag[idx+1:])
-	}
-	return tag, tagOptions("")
-}
-
-// Contains reports whether a comma-separated list of options
-// contains a particular substr flag. substr must be surrounded by a
-// string boundary or commas.
-func (o tagOptions) Contains(optionName string) bool {
-	if len(o) == 0 {
-		return false
-	}
-	s := string(o)
-	for s != "" {
-		var next string
-		i := strings.Index(s, ",")
-		if i >= 0 {
-			s, next = s[:i], s[i+1:]
-		}
-		if s == optionName {
-			return true
-		}
-		s = next
-	}
-	return false
-}
diff --git a/vendor/github.com/ghodss/yaml/yaml.go b/vendor/github.com/ghodss/yaml/yaml.go
deleted file mode 100644
index 4fb4054..0000000
--- a/vendor/github.com/ghodss/yaml/yaml.go
+++ /dev/null
@@ -1,277 +0,0 @@
-package yaml
-
-import (
-	"bytes"
-	"encoding/json"
-	"fmt"
-	"reflect"
-	"strconv"
-
-	"gopkg.in/yaml.v2"
-)
-
-// Marshals the object into JSON then converts JSON to YAML and returns the
-// YAML.
-func Marshal(o interface{}) ([]byte, error) {
-	j, err := json.Marshal(o)
-	if err != nil {
-		return nil, fmt.Errorf("error marshaling into JSON: %v", err)
-	}
-
-	y, err := JSONToYAML(j)
-	if err != nil {
-		return nil, fmt.Errorf("error converting JSON to YAML: %v", err)
-	}
-
-	return y, nil
-}
-
-// Converts YAML to JSON then uses JSON to unmarshal into an object.
-func Unmarshal(y []byte, o interface{}) error {
-	vo := reflect.ValueOf(o)
-	j, err := yamlToJSON(y, &vo)
-	if err != nil {
-		return fmt.Errorf("error converting YAML to JSON: %v", err)
-	}
-
-	err = json.Unmarshal(j, o)
-	if err != nil {
-		return fmt.Errorf("error unmarshaling JSON: %v", err)
-	}
-
-	return nil
-}
-
-// Convert JSON to YAML.
-func JSONToYAML(j []byte) ([]byte, error) {
-	// Convert the JSON to an object.
-	var jsonObj interface{}
-	// We are using yaml.Unmarshal here (instead of json.Unmarshal) because the
-	// Go JSON library doesn't try to pick the right number type (int, float,
-	// etc.) when unmarshalling to interface{}, it just picks float64
-	// universally. go-yaml does go through the effort of picking the right
-	// number type, so we can preserve number type throughout this process.
-	err := yaml.Unmarshal(j, &jsonObj)
-	if err != nil {
-		return nil, err
-	}
-
-	// Marshal this object into YAML.
-	return yaml.Marshal(jsonObj)
-}
-
-// Convert YAML to JSON. Since JSON is a subset of YAML, passing JSON through
-// this method should be a no-op.
-//
-// Things YAML can do that are not supported by JSON:
-// * In YAML you can have binary and null keys in your maps. These are invalid
-//   in JSON. (int and float keys are converted to strings.)
-// * Binary data in YAML with the !!binary tag is not supported. If you want to
-//   use binary data with this library, encode the data as base64 as usual but do
-//   not use the !!binary tag in your YAML. This will ensure the original base64
-//   encoded data makes it all the way through to the JSON.
-func YAMLToJSON(y []byte) ([]byte, error) {
-	return yamlToJSON(y, nil)
-}
-
-func yamlToJSON(y []byte, jsonTarget *reflect.Value) ([]byte, error) {
-	// Convert the YAML to an object.
-	var yamlObj interface{}
-	err := yaml.Unmarshal(y, &yamlObj)
-	if err != nil {
-		return nil, err
-	}
-
-	// YAML objects are not completely compatible with JSON objects (e.g. you
-	// can have non-string keys in YAML). So, convert the YAML-compatible object
-	// to a JSON-compatible object, failing with an error if irrecoverable
-	// incompatibilties happen along the way.
-	jsonObj, err := convertToJSONableObject(yamlObj, jsonTarget)
-	if err != nil {
-		return nil, err
-	}
-
-	// Convert this object to JSON and return the data.
-	return json.Marshal(jsonObj)
-}
-
-func convertToJSONableObject(yamlObj interface{}, jsonTarget *reflect.Value) (interface{}, error) {
-	var err error
-
-	// Resolve jsonTarget to a concrete value (i.e. not a pointer or an
-	// interface). We pass decodingNull as false because we're not actually
-	// decoding into the value, we're just checking if the ultimate target is a
-	// string.
-	if jsonTarget != nil {
-		ju, tu, pv := indirect(*jsonTarget, false)
-		// We have a JSON or Text Umarshaler at this level, so we can't be trying
-		// to decode into a string.
-		if ju != nil || tu != nil {
-			jsonTarget = nil
-		} else {
-			jsonTarget = &pv
-		}
-	}
-
-	// If yamlObj is a number or a boolean, check if jsonTarget is a string -
-	// if so, coerce.  Else return normal.
-	// If yamlObj is a map or array, find the field that each key is
-	// unmarshaling to, and when you recurse pass the reflect.Value for that
-	// field back into this function.
-	switch typedYAMLObj := yamlObj.(type) {
-	case map[interface{}]interface{}:
-		// JSON does not support arbitrary keys in a map, so we must convert
-		// these keys to strings.
-		//
-		// From my reading of go-yaml v2 (specifically the resolve function),
-		// keys can only have the types string, int, int64, float64, binary
-		// (unsupported), or null (unsupported).
-		strMap := make(map[string]interface{})
-		for k, v := range typedYAMLObj {
-			// Resolve the key to a string first.
-			var keyString string
-			switch typedKey := k.(type) {
-			case string:
-				keyString = typedKey
-			case int:
-				keyString = strconv.Itoa(typedKey)
-			case int64:
-				// go-yaml will only return an int64 as a key if the system
-				// architecture is 32-bit and the key's value is between 32-bit
-				// and 64-bit. Otherwise the key type will simply be int.
-				keyString = strconv.FormatInt(typedKey, 10)
-			case float64:
-				// Stolen from go-yaml to use the same conversion to string as
-				// the go-yaml library uses to convert float to string when
-				// Marshaling.
-				s := strconv.FormatFloat(typedKey, 'g', -1, 32)
-				switch s {
-				case "+Inf":
-					s = ".inf"
-				case "-Inf":
-					s = "-.inf"
-				case "NaN":
-					s = ".nan"
-				}
-				keyString = s
-			case bool:
-				if typedKey {
-					keyString = "true"
-				} else {
-					keyString = "false"
-				}
-			default:
-				return nil, fmt.Errorf("Unsupported map key of type: %s, key: %+#v, value: %+#v",
-					reflect.TypeOf(k), k, v)
-			}
-
-			// jsonTarget should be a struct or a map. If it's a struct, find
-			// the field it's going to map to and pass its reflect.Value. If
-			// it's a map, find the element type of the map and pass the
-			// reflect.Value created from that type. If it's neither, just pass
-			// nil - JSON conversion will error for us if it's a real issue.
-			if jsonTarget != nil {
-				t := *jsonTarget
-				if t.Kind() == reflect.Struct {
-					keyBytes := []byte(keyString)
-					// Find the field that the JSON library would use.
-					var f *field
-					fields := cachedTypeFields(t.Type())
-					for i := range fields {
-						ff := &fields[i]
-						if bytes.Equal(ff.nameBytes, keyBytes) {
-							f = ff
-							break
-						}
-						// Do case-insensitive comparison.
-						if f == nil && ff.equalFold(ff.nameBytes, keyBytes) {
-							f = ff
-						}
-					}
-					if f != nil {
-						// Find the reflect.Value of the most preferential
-						// struct field.
-						jtf := t.Field(f.index[0])
-						strMap[keyString], err = convertToJSONableObject(v, &jtf)
-						if err != nil {
-							return nil, err
-						}
-						continue
-					}
-				} else if t.Kind() == reflect.Map {
-					// Create a zero value of the map's element type to use as
-					// the JSON target.
-					jtv := reflect.Zero(t.Type().Elem())
-					strMap[keyString], err = convertToJSONableObject(v, &jtv)
-					if err != nil {
-						return nil, err
-					}
-					continue
-				}
-			}
-			strMap[keyString], err = convertToJSONableObject(v, nil)
-			if err != nil {
-				return nil, err
-			}
-		}
-		return strMap, nil
-	case []interface{}:
-		// We need to recurse into arrays in case there are any
-		// map[interface{}]interface{}'s inside and to convert any
-		// numbers to strings.
-
-		// If jsonTarget is a slice (which it really should be), find the
-		// thing it's going to map to. If it's not a slice, just pass nil
-		// - JSON conversion will error for us if it's a real issue.
-		var jsonSliceElemValue *reflect.Value
-		if jsonTarget != nil {
-			t := *jsonTarget
-			if t.Kind() == reflect.Slice {
-				// By default slices point to nil, but we need a reflect.Value
-				// pointing to a value of the slice type, so we create one here.
-				ev := reflect.Indirect(reflect.New(t.Type().Elem()))
-				jsonSliceElemValue = &ev
-			}
-		}
-
-		// Make and use a new array.
-		arr := make([]interface{}, len(typedYAMLObj))
-		for i, v := range typedYAMLObj {
-			arr[i], err = convertToJSONableObject(v, jsonSliceElemValue)
-			if err != nil {
-				return nil, err
-			}
-		}
-		return arr, nil
-	default:
-		// If the target type is a string and the YAML type is a number,
-		// convert the YAML type to a string.
-		if jsonTarget != nil && (*jsonTarget).Kind() == reflect.String {
-			// Based on my reading of go-yaml, it may return int, int64,
-			// float64, or uint64.
-			var s string
-			switch typedVal := typedYAMLObj.(type) {
-			case int:
-				s = strconv.FormatInt(int64(typedVal), 10)
-			case int64:
-				s = strconv.FormatInt(typedVal, 10)
-			case float64:
-				s = strconv.FormatFloat(typedVal, 'g', -1, 32)
-			case uint64:
-				s = strconv.FormatUint(typedVal, 10)
-			case bool:
-				if typedVal {
-					s = "true"
-				} else {
-					s = "false"
-				}
-			}
-			if len(s) > 0 {
-				yamlObj = interface{}(s)
-			}
-		}
-		return yamlObj, nil
-	}
-
-	return nil, nil
-}
diff --git a/vendor/github.com/imdario/mergo/.deepsource.toml b/vendor/github.com/imdario/mergo/.deepsource.toml
new file mode 100644
index 0000000..8a0681a
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/.deepsource.toml
@@ -0,0 +1,12 @@
+version = 1
+
+test_patterns = [
+  "*_test.go"
+]
+
+[[analyzers]]
+name = "go"
+enabled = true
+
+  [analyzers.meta]
+  import_path = "github.com/imdario/mergo"
\ No newline at end of file
diff --git a/vendor/github.com/imdario/mergo/.gitignore b/vendor/github.com/imdario/mergo/.gitignore
new file mode 100644
index 0000000..529c341
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/.gitignore
@@ -0,0 +1,33 @@
+#### joe made this: http://goel.io/joe
+
+#### go ####
+# Binaries for programs and plugins
+*.exe
+*.dll
+*.so
+*.dylib
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
+.glide/
+
+#### vim ####
+# Swap
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-v][a-z]
+[._]sw[a-p]
+
+# Session
+Session.vim
+
+# Temporary
+.netrwhist
+*~
+# Auto-generated tag files
+tags
diff --git a/vendor/github.com/imdario/mergo/.travis.yml b/vendor/github.com/imdario/mergo/.travis.yml
new file mode 100644
index 0000000..dad2972
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/.travis.yml
@@ -0,0 +1,9 @@
+language: go
+install:
+  - go get -t
+  - go get golang.org/x/tools/cmd/cover
+  - go get github.com/mattn/goveralls
+script:
+  - go test -race -v ./...
+after_script:
+  - $HOME/gopath/bin/goveralls -service=travis-ci -repotoken $COVERALLS_TOKEN
diff --git a/vendor/github.com/imdario/mergo/CODE_OF_CONDUCT.md b/vendor/github.com/imdario/mergo/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..469b449
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/CODE_OF_CONDUCT.md
@@ -0,0 +1,46 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at i@dario.im. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/
diff --git a/vendor/github.com/imdario/mergo/LICENSE b/vendor/github.com/imdario/mergo/LICENSE
new file mode 100644
index 0000000..6866802
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/LICENSE
@@ -0,0 +1,28 @@
+Copyright (c) 2013 Dario Castañé. All rights reserved.
+Copyright (c) 2012 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/imdario/mergo/README.md b/vendor/github.com/imdario/mergo/README.md
new file mode 100644
index 0000000..876abb5
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/README.md
@@ -0,0 +1,247 @@
+# Mergo
+
+
+[![GoDoc][3]][4]
+[![GitHub release][5]][6]
+[![GoCard][7]][8]
+[![Build Status][1]][2]
+[![Coverage Status][9]][10]
+[![Sourcegraph][11]][12]
+[![FOSSA Status][13]][14]
+
+[![GoCenter Kudos][15]][16]
+
+[1]: https://travis-ci.org/imdario/mergo.png
+[2]: https://travis-ci.org/imdario/mergo
+[3]: https://godoc.org/github.com/imdario/mergo?status.svg
+[4]: https://godoc.org/github.com/imdario/mergo
+[5]: https://img.shields.io/github/release/imdario/mergo.svg
+[6]: https://github.com/imdario/mergo/releases
+[7]: https://goreportcard.com/badge/imdario/mergo
+[8]: https://goreportcard.com/report/github.com/imdario/mergo
+[9]: https://coveralls.io/repos/github/imdario/mergo/badge.svg?branch=master
+[10]: https://coveralls.io/github/imdario/mergo?branch=master
+[11]: https://sourcegraph.com/github.com/imdario/mergo/-/badge.svg
+[12]: https://sourcegraph.com/github.com/imdario/mergo?badge
+[13]: https://app.fossa.io/api/projects/git%2Bgithub.com%2Fimdario%2Fmergo.svg?type=shield
+[14]: https://app.fossa.io/projects/git%2Bgithub.com%2Fimdario%2Fmergo?ref=badge_shield
+[15]: https://search.gocenter.io/api/ui/badge/github.com%2Fimdario%2Fmergo
+[16]: https://search.gocenter.io/github.com/imdario/mergo
+
+A helper to merge structs and maps in Golang. Useful for configuration default values, avoiding messy if-statements.
+
+Mergo merges same-type structs and maps by setting default values in zero-value fields. Mergo won't merge unexported (private) fields. It will do recursively any exported one. It also won't merge structs inside maps (because they are not addressable using Go reflection).
+
+Also a lovely [comune](http://en.wikipedia.org/wiki/Mergo) (municipality) in the Province of Ancona in the Italian region of Marche.
+
+## Status
+
+It is ready for production use. [It is used in several projects by Docker, Google, The Linux Foundation, VMWare, Shopify, etc](https://github.com/imdario/mergo#mergo-in-the-wild).
+
+### Important note
+
+Please keep in mind that a problematic PR broke [0.3.9](//github.com/imdario/mergo/releases/tag/0.3.9). I reverted it in [0.3.10](//github.com/imdario/mergo/releases/tag/0.3.10), and I consider it stable but not bug-free. Also, this version adds suppot for go modules.
+
+Keep in mind that in [0.3.2](//github.com/imdario/mergo/releases/tag/0.3.2), Mergo changed `Merge()`and `Map()` signatures to support [transformers](#transformers). I added an optional/variadic argument so that it won't break the existing code.
+
+If you were using Mergo before April 6th, 2015, please check your project works as intended after updating your local copy with ```go get -u github.com/imdario/mergo```. I apologize for any issue caused by its previous behavior and any future bug that Mergo could cause in existing projects after the change (release 0.2.0).
+
+### Donations
+
+If Mergo is useful to you, consider buying me a coffee, a beer, or making a monthly donation to allow me to keep building great free software. :heart_eyes:
+
+<a href='https://ko-fi.com/B0B58839' target='_blank'><img height='36' style='border:0px;height:36px;' src='https://az743702.vo.msecnd.net/cdn/kofi1.png?v=0' border='0' alt='Buy Me a Coffee at ko-fi.com' /></a>
+[![Beerpay](https://beerpay.io/imdario/mergo/badge.svg)](https://beerpay.io/imdario/mergo)
+[![Beerpay](https://beerpay.io/imdario/mergo/make-wish.svg)](https://beerpay.io/imdario/mergo)
+<a href="https://liberapay.com/dario/donate"><img alt="Donate using Liberapay" src="https://liberapay.com/assets/widgets/donate.svg"></a>
+
+### Mergo in the wild
+
+- [moby/moby](https://github.com/moby/moby)
+- [kubernetes/kubernetes](https://github.com/kubernetes/kubernetes)
+- [vmware/dispatch](https://github.com/vmware/dispatch)
+- [Shopify/themekit](https://github.com/Shopify/themekit)
+- [imdario/zas](https://github.com/imdario/zas)
+- [matcornic/hermes](https://github.com/matcornic/hermes)
+- [OpenBazaar/openbazaar-go](https://github.com/OpenBazaar/openbazaar-go)
+- [kataras/iris](https://github.com/kataras/iris)
+- [michaelsauter/crane](https://github.com/michaelsauter/crane)
+- [go-task/task](https://github.com/go-task/task)
+- [sensu/uchiwa](https://github.com/sensu/uchiwa)
+- [ory/hydra](https://github.com/ory/hydra)
+- [sisatech/vcli](https://github.com/sisatech/vcli)
+- [dairycart/dairycart](https://github.com/dairycart/dairycart)
+- [projectcalico/felix](https://github.com/projectcalico/felix)
+- [resin-os/balena](https://github.com/resin-os/balena)
+- [go-kivik/kivik](https://github.com/go-kivik/kivik)
+- [Telefonica/govice](https://github.com/Telefonica/govice)
+- [supergiant/supergiant](supergiant/supergiant)
+- [SergeyTsalkov/brooce](https://github.com/SergeyTsalkov/brooce)
+- [soniah/dnsmadeeasy](https://github.com/soniah/dnsmadeeasy)
+- [ohsu-comp-bio/funnel](https://github.com/ohsu-comp-bio/funnel)
+- [EagerIO/Stout](https://github.com/EagerIO/Stout)
+- [lynndylanhurley/defsynth-api](https://github.com/lynndylanhurley/defsynth-api)
+- [russross/canvasassignments](https://github.com/russross/canvasassignments)
+- [rdegges/cryptly-api](https://github.com/rdegges/cryptly-api)
+- [casualjim/exeggutor](https://github.com/casualjim/exeggutor)
+- [divshot/gitling](https://github.com/divshot/gitling)
+- [RWJMurphy/gorl](https://github.com/RWJMurphy/gorl)
+- [andrerocker/deploy42](https://github.com/andrerocker/deploy42)
+- [elwinar/rambler](https://github.com/elwinar/rambler)
+- [tmaiaroto/gopartman](https://github.com/tmaiaroto/gopartman)
+- [jfbus/impressionist](https://github.com/jfbus/impressionist)
+- [Jmeyering/zealot](https://github.com/Jmeyering/zealot)
+- [godep-migrator/rigger-host](https://github.com/godep-migrator/rigger-host)
+- [Dronevery/MultiwaySwitch-Go](https://github.com/Dronevery/MultiwaySwitch-Go)
+- [thoas/picfit](https://github.com/thoas/picfit)
+- [mantasmatelis/whooplist-server](https://github.com/mantasmatelis/whooplist-server)
+- [jnuthong/item_search](https://github.com/jnuthong/item_search)
+- [bukalapak/snowboard](https://github.com/bukalapak/snowboard)
+- [janoszen/containerssh](https://github.com/janoszen/containerssh)
+
+## Install
+
+    go get github.com/imdario/mergo
+
+    // use in your .go code
+    import (
+        "github.com/imdario/mergo"
+    )
+
+## Usage
+
+You can only merge same-type structs with exported fields initialized as zero value of their type and same-types maps. Mergo won't merge unexported (private) fields but will do recursively any exported one. It won't merge empty structs value as [they are zero values](https://golang.org/ref/spec#The_zero_value) too. Also, maps will be merged recursively except for structs inside maps (because they are not addressable using Go reflection).
+
+```go
+if err := mergo.Merge(&dst, src); err != nil {
+    // ...
+}
+```
+
+Also, you can merge overwriting values using the transformer `WithOverride`.
+
+```go
+if err := mergo.Merge(&dst, src, mergo.WithOverride); err != nil {
+    // ...
+}
+```
+
+Additionally, you can map a `map[string]interface{}` to a struct (and otherwise, from struct to map), following the same restrictions as in `Merge()`. Keys are capitalized to find each corresponding exported field.
+
+```go
+if err := mergo.Map(&dst, srcMap); err != nil {
+    // ...
+}
+```
+
+Warning: if you map a struct to map, it won't do it recursively. Don't expect Mergo to map struct members of your struct as `map[string]interface{}`. They will be just assigned as values.
+
+Here is a nice example:
+
+```go
+package main
+
+import (
+	"fmt"
+	"github.com/imdario/mergo"
+)
+
+type Foo struct {
+	A string
+	B int64
+}
+
+func main() {
+	src := Foo{
+		A: "one",
+		B: 2,
+	}
+	dest := Foo{
+		A: "two",
+	}
+	mergo.Merge(&dest, src)
+	fmt.Println(dest)
+	// Will print
+	// {two 2}
+}
+```
+
+Note: if test are failing due missing package, please execute:
+
+    go get gopkg.in/yaml.v2
+
+### Transformers
+
+Transformers allow to merge specific types differently than in the default behavior. In other words, now you can customize how some types are merged. For example, `time.Time` is a struct; it doesn't have zero value but IsZero can return true because it has fields with zero value. How can we merge a non-zero `time.Time`?
+
+```go
+package main
+
+import (
+	"fmt"
+	"github.com/imdario/mergo"
+        "reflect"
+        "time"
+)
+
+type timeTransformer struct {
+}
+
+func (t timeTransformer) Transformer(typ reflect.Type) func(dst, src reflect.Value) error {
+	if typ == reflect.TypeOf(time.Time{}) {
+		return func(dst, src reflect.Value) error {
+			if dst.CanSet() {
+				isZero := dst.MethodByName("IsZero")
+				result := isZero.Call([]reflect.Value{})
+				if result[0].Bool() {
+					dst.Set(src)
+				}
+			}
+			return nil
+		}
+	}
+	return nil
+}
+
+type Snapshot struct {
+	Time time.Time
+	// ...
+}
+
+func main() {
+	src := Snapshot{time.Now()}
+	dest := Snapshot{}
+	mergo.Merge(&dest, src, mergo.WithTransformers(timeTransformer{}))
+	fmt.Println(dest)
+	// Will print
+	// { 2018-01-12 01:15:00 +0000 UTC m=+0.000000001 }
+}
+```
+
+
+## Contact me
+
+If I can help you, you have an idea or you are using Mergo in your projects, don't hesitate to drop me a line (or a pull request): [@im_dario](https://twitter.com/im_dario)
+
+## About
+
+Written by [Dario Castañé](http://dario.im).
+
+## Top Contributors
+
+[![0](https://sourcerer.io/fame/imdario/imdario/mergo/images/0)](https://sourcerer.io/fame/imdario/imdario/mergo/links/0)
+[![1](https://sourcerer.io/fame/imdario/imdario/mergo/images/1)](https://sourcerer.io/fame/imdario/imdario/mergo/links/1)
+[![2](https://sourcerer.io/fame/imdario/imdario/mergo/images/2)](https://sourcerer.io/fame/imdario/imdario/mergo/links/2)
+[![3](https://sourcerer.io/fame/imdario/imdario/mergo/images/3)](https://sourcerer.io/fame/imdario/imdario/mergo/links/3)
+[![4](https://sourcerer.io/fame/imdario/imdario/mergo/images/4)](https://sourcerer.io/fame/imdario/imdario/mergo/links/4)
+[![5](https://sourcerer.io/fame/imdario/imdario/mergo/images/5)](https://sourcerer.io/fame/imdario/imdario/mergo/links/5)
+[![6](https://sourcerer.io/fame/imdario/imdario/mergo/images/6)](https://sourcerer.io/fame/imdario/imdario/mergo/links/6)
+[![7](https://sourcerer.io/fame/imdario/imdario/mergo/images/7)](https://sourcerer.io/fame/imdario/imdario/mergo/links/7)
+
+
+## License
+
+[BSD 3-Clause](http://opensource.org/licenses/BSD-3-Clause) license, as [Go language](http://golang.org/LICENSE).
+
+
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fimdario%2Fmergo.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fimdario%2Fmergo?ref=badge_large)
diff --git a/vendor/github.com/imdario/mergo/doc.go b/vendor/github.com/imdario/mergo/doc.go
new file mode 100644
index 0000000..fcd985f
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/doc.go
@@ -0,0 +1,143 @@
+// Copyright 2013 Dario Castañé. All rights reserved.
+// 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.
+
+/*
+A helper to merge structs and maps in Golang. Useful for configuration default values, avoiding messy if-statements.
+
+Mergo merges same-type structs and maps by setting default values in zero-value fields. Mergo won't merge unexported (private) fields. It will do recursively any exported one. It also won't merge structs inside maps (because they are not addressable using Go reflection).
+
+Status
+
+It is ready for production use. It is used in several projects by Docker, Google, The Linux Foundation, VMWare, Shopify, etc.
+
+Important note
+
+Please keep in mind that a problematic PR broke 0.3.9. We reverted it in 0.3.10. We consider 0.3.10 as stable but not bug-free. . Also, this version adds suppot for go modules.
+
+Keep in mind that in 0.3.2, Mergo changed Merge() and Map() signatures to support transformers. We added an optional/variadic argument so that it won't break the existing code.
+
+If you were using Mergo before April 6th, 2015, please check your project works as intended after updating your local copy with go get -u github.com/imdario/mergo. I apologize for any issue caused by its previous behavior and any future bug that Mergo could cause in existing projects after the change (release 0.2.0).
+
+Install
+
+Do your usual installation procedure:
+
+    go get github.com/imdario/mergo
+
+    // use in your .go code
+    import (
+        "github.com/imdario/mergo"
+    )
+
+Usage
+
+You can only merge same-type structs with exported fields initialized as zero value of their type and same-types maps. Mergo won't merge unexported (private) fields but will do recursively any exported one. It won't merge empty structs value as they are zero values too. Also, maps will be merged recursively except for structs inside maps (because they are not addressable using Go reflection).
+
+	if err := mergo.Merge(&dst, src); err != nil {
+		// ...
+	}
+
+Also, you can merge overwriting values using the transformer WithOverride.
+
+	if err := mergo.Merge(&dst, src, mergo.WithOverride); err != nil {
+		// ...
+	}
+
+Additionally, you can map a map[string]interface{} to a struct (and otherwise, from struct to map), following the same restrictions as in Merge(). Keys are capitalized to find each corresponding exported field.
+
+	if err := mergo.Map(&dst, srcMap); err != nil {
+		// ...
+	}
+
+Warning: if you map a struct to map, it won't do it recursively. Don't expect Mergo to map struct members of your struct as map[string]interface{}. They will be just assigned as values.
+
+Here is a nice example:
+
+	package main
+
+	import (
+		"fmt"
+		"github.com/imdario/mergo"
+	)
+
+	type Foo struct {
+		A string
+		B int64
+	}
+
+	func main() {
+		src := Foo{
+			A: "one",
+			B: 2,
+		}
+		dest := Foo{
+			A: "two",
+		}
+		mergo.Merge(&dest, src)
+		fmt.Println(dest)
+		// Will print
+		// {two 2}
+	}
+
+Transformers
+
+Transformers allow to merge specific types differently than in the default behavior. In other words, now you can customize how some types are merged. For example, time.Time is a struct; it doesn't have zero value but IsZero can return true because it has fields with zero value. How can we merge a non-zero time.Time?
+
+	package main
+
+	import (
+		"fmt"
+		"github.com/imdario/mergo"
+			"reflect"
+			"time"
+	)
+
+	type timeTransformer struct {
+	}
+
+	func (t timeTransformer) Transformer(typ reflect.Type) func(dst, src reflect.Value) error {
+		if typ == reflect.TypeOf(time.Time{}) {
+			return func(dst, src reflect.Value) error {
+				if dst.CanSet() {
+					isZero := dst.MethodByName("IsZero")
+					result := isZero.Call([]reflect.Value{})
+					if result[0].Bool() {
+						dst.Set(src)
+					}
+				}
+				return nil
+			}
+		}
+		return nil
+	}
+
+	type Snapshot struct {
+		Time time.Time
+		// ...
+	}
+
+	func main() {
+		src := Snapshot{time.Now()}
+		dest := Snapshot{}
+		mergo.Merge(&dest, src, mergo.WithTransformers(timeTransformer{}))
+		fmt.Println(dest)
+		// Will print
+		// { 2018-01-12 01:15:00 +0000 UTC m=+0.000000001 }
+	}
+
+Contact me
+
+If I can help you, you have an idea or you are using Mergo in your projects, don't hesitate to drop me a line (or a pull request): https://twitter.com/im_dario
+
+About
+
+Written by Dario Castañé: https://da.rio.hn
+
+License
+
+BSD 3-Clause license, as Go language.
+
+*/
+package mergo
diff --git a/vendor/github.com/imdario/mergo/go.mod b/vendor/github.com/imdario/mergo/go.mod
new file mode 100644
index 0000000..3d689d9
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/go.mod
@@ -0,0 +1,5 @@
+module github.com/imdario/mergo
+
+go 1.13
+
+require gopkg.in/yaml.v2 v2.3.0
diff --git a/vendor/github.com/imdario/mergo/go.sum b/vendor/github.com/imdario/mergo/go.sum
new file mode 100644
index 0000000..168980d
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/go.sum
@@ -0,0 +1,4 @@
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
diff --git a/vendor/github.com/imdario/mergo/map.go b/vendor/github.com/imdario/mergo/map.go
new file mode 100644
index 0000000..a13a7ee
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/map.go
@@ -0,0 +1,178 @@
+// Copyright 2014 Dario Castañé. All rights reserved.
+// 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.
+
+// Based on src/pkg/reflect/deepequal.go from official
+// golang's stdlib.
+
+package mergo
+
+import (
+	"fmt"
+	"reflect"
+	"unicode"
+	"unicode/utf8"
+)
+
+func changeInitialCase(s string, mapper func(rune) rune) string {
+	if s == "" {
+		return s
+	}
+	r, n := utf8.DecodeRuneInString(s)
+	return string(mapper(r)) + s[n:]
+}
+
+func isExported(field reflect.StructField) bool {
+	r, _ := utf8.DecodeRuneInString(field.Name)
+	return r >= 'A' && r <= 'Z'
+}
+
+// Traverses recursively both values, assigning src's fields values to dst.
+// The map argument tracks comparisons that have already been seen, which allows
+// short circuiting on recursive types.
+func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, config *Config) (err error) {
+	overwrite := config.Overwrite
+	if dst.CanAddr() {
+		addr := dst.UnsafeAddr()
+		h := 17 * addr
+		seen := visited[h]
+		typ := dst.Type()
+		for p := seen; p != nil; p = p.next {
+			if p.ptr == addr && p.typ == typ {
+				return nil
+			}
+		}
+		// Remember, remember...
+		visited[h] = &visit{addr, typ, seen}
+	}
+	zeroValue := reflect.Value{}
+	switch dst.Kind() {
+	case reflect.Map:
+		dstMap := dst.Interface().(map[string]interface{})
+		for i, n := 0, src.NumField(); i < n; i++ {
+			srcType := src.Type()
+			field := srcType.Field(i)
+			if !isExported(field) {
+				continue
+			}
+			fieldName := field.Name
+			fieldName = changeInitialCase(fieldName, unicode.ToLower)
+			if v, ok := dstMap[fieldName]; !ok || (isEmptyValue(reflect.ValueOf(v)) || overwrite) {
+				dstMap[fieldName] = src.Field(i).Interface()
+			}
+		}
+	case reflect.Ptr:
+		if dst.IsNil() {
+			v := reflect.New(dst.Type().Elem())
+			dst.Set(v)
+		}
+		dst = dst.Elem()
+		fallthrough
+	case reflect.Struct:
+		srcMap := src.Interface().(map[string]interface{})
+		for key := range srcMap {
+			config.overwriteWithEmptyValue = true
+			srcValue := srcMap[key]
+			fieldName := changeInitialCase(key, unicode.ToUpper)
+			dstElement := dst.FieldByName(fieldName)
+			if dstElement == zeroValue {
+				// We discard it because the field doesn't exist.
+				continue
+			}
+			srcElement := reflect.ValueOf(srcValue)
+			dstKind := dstElement.Kind()
+			srcKind := srcElement.Kind()
+			if srcKind == reflect.Ptr && dstKind != reflect.Ptr {
+				srcElement = srcElement.Elem()
+				srcKind = reflect.TypeOf(srcElement.Interface()).Kind()
+			} else if dstKind == reflect.Ptr {
+				// Can this work? I guess it can't.
+				if srcKind != reflect.Ptr && srcElement.CanAddr() {
+					srcPtr := srcElement.Addr()
+					srcElement = reflect.ValueOf(srcPtr)
+					srcKind = reflect.Ptr
+				}
+			}
+
+			if !srcElement.IsValid() {
+				continue
+			}
+			if srcKind == dstKind {
+				if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
+					return
+				}
+			} else if dstKind == reflect.Interface && dstElement.Kind() == reflect.Interface {
+				if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
+					return
+				}
+			} else if srcKind == reflect.Map {
+				if err = deepMap(dstElement, srcElement, visited, depth+1, config); err != nil {
+					return
+				}
+			} else {
+				return fmt.Errorf("type mismatch on %s field: found %v, expected %v", fieldName, srcKind, dstKind)
+			}
+		}
+	}
+	return
+}
+
+// Map sets fields' values in dst from src.
+// src can be a map with string keys or a struct. dst must be the opposite:
+// if src is a map, dst must be a valid pointer to struct. If src is a struct,
+// dst must be map[string]interface{}.
+// It won't merge unexported (private) fields and will do recursively
+// any exported field.
+// If dst is a map, keys will be src fields' names in lower camel case.
+// Missing key in src that doesn't match a field in dst will be skipped. This
+// doesn't apply if dst is a map.
+// This is separated method from Merge because it is cleaner and it keeps sane
+// semantics: merging equal types, mapping different (restricted) types.
+func Map(dst, src interface{}, opts ...func(*Config)) error {
+	return _map(dst, src, opts...)
+}
+
+// MapWithOverwrite will do the same as Map except that non-empty dst attributes will be overridden by
+// non-empty src attribute values.
+// Deprecated: Use Map(…) with WithOverride
+func MapWithOverwrite(dst, src interface{}, opts ...func(*Config)) error {
+	return _map(dst, src, append(opts, WithOverride)...)
+}
+
+func _map(dst, src interface{}, opts ...func(*Config)) error {
+	if dst != nil && reflect.ValueOf(dst).Kind() != reflect.Ptr {
+		return ErrNonPointerAgument
+	}
+	var (
+		vDst, vSrc reflect.Value
+		err        error
+	)
+	config := &Config{}
+
+	for _, opt := range opts {
+		opt(config)
+	}
+
+	if vDst, vSrc, err = resolveValues(dst, src); err != nil {
+		return err
+	}
+	// To be friction-less, we redirect equal-type arguments
+	// to deepMerge. Only because arguments can be anything.
+	if vSrc.Kind() == vDst.Kind() {
+		return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0, config)
+	}
+	switch vSrc.Kind() {
+	case reflect.Struct:
+		if vDst.Kind() != reflect.Map {
+			return ErrExpectedMapAsDestination
+		}
+	case reflect.Map:
+		if vDst.Kind() != reflect.Struct {
+			return ErrExpectedStructAsDestination
+		}
+	default:
+		return ErrNotSupported
+	}
+	return deepMap(vDst, vSrc, make(map[uintptr]*visit), 0, config)
+}
diff --git a/vendor/github.com/imdario/mergo/merge.go b/vendor/github.com/imdario/mergo/merge.go
new file mode 100644
index 0000000..afa84a1
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/merge.go
@@ -0,0 +1,375 @@
+// Copyright 2013 Dario Castañé. All rights reserved.
+// 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.
+
+// Based on src/pkg/reflect/deepequal.go from official
+// golang's stdlib.
+
+package mergo
+
+import (
+	"fmt"
+	"reflect"
+)
+
+func hasMergeableFields(dst reflect.Value) (exported bool) {
+	for i, n := 0, dst.NumField(); i < n; i++ {
+		field := dst.Type().Field(i)
+		if field.Anonymous && dst.Field(i).Kind() == reflect.Struct {
+			exported = exported || hasMergeableFields(dst.Field(i))
+		} else if isExportedComponent(&field) {
+			exported = exported || len(field.PkgPath) == 0
+		}
+	}
+	return
+}
+
+func isExportedComponent(field *reflect.StructField) bool {
+	pkgPath := field.PkgPath
+	if len(pkgPath) > 0 {
+		return false
+	}
+	c := field.Name[0]
+	if 'a' <= c && c <= 'z' || c == '_' {
+		return false
+	}
+	return true
+}
+
+type Config struct {
+	Overwrite                    bool
+	AppendSlice                  bool
+	TypeCheck                    bool
+	Transformers                 Transformers
+	overwriteWithEmptyValue      bool
+	overwriteSliceWithEmptyValue bool
+	sliceDeepCopy                bool
+	debug                        bool
+}
+
+type Transformers interface {
+	Transformer(reflect.Type) func(dst, src reflect.Value) error
+}
+
+// Traverses recursively both values, assigning src's fields values to dst.
+// The map argument tracks comparisons that have already been seen, which allows
+// short circuiting on recursive types.
+func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, config *Config) (err error) {
+	overwrite := config.Overwrite
+	typeCheck := config.TypeCheck
+	overwriteWithEmptySrc := config.overwriteWithEmptyValue
+	overwriteSliceWithEmptySrc := config.overwriteSliceWithEmptyValue
+	sliceDeepCopy := config.sliceDeepCopy
+
+	if !src.IsValid() {
+		return
+	}
+	if dst.CanAddr() {
+		addr := dst.UnsafeAddr()
+		h := 17 * addr
+		seen := visited[h]
+		typ := dst.Type()
+		for p := seen; p != nil; p = p.next {
+			if p.ptr == addr && p.typ == typ {
+				return nil
+			}
+		}
+		// Remember, remember...
+		visited[h] = &visit{addr, typ, seen}
+	}
+
+	if config.Transformers != nil && !isEmptyValue(dst) {
+		if fn := config.Transformers.Transformer(dst.Type()); fn != nil {
+			err = fn(dst, src)
+			return
+		}
+	}
+
+	switch dst.Kind() {
+	case reflect.Struct:
+		if hasMergeableFields(dst) {
+			for i, n := 0, dst.NumField(); i < n; i++ {
+				if err = deepMerge(dst.Field(i), src.Field(i), visited, depth+1, config); err != nil {
+					return
+				}
+			}
+		} else {
+			if (isReflectNil(dst) || overwrite) && (!isEmptyValue(src) || overwriteWithEmptySrc) {
+				dst.Set(src)
+			}
+		}
+	case reflect.Map:
+		if dst.IsNil() && !src.IsNil() {
+			dst.Set(reflect.MakeMap(dst.Type()))
+		}
+
+		if src.Kind() != reflect.Map {
+			if overwrite {
+				dst.Set(src)
+			}
+			return
+		}
+
+		for _, key := range src.MapKeys() {
+			srcElement := src.MapIndex(key)
+			if !srcElement.IsValid() {
+				continue
+			}
+			dstElement := dst.MapIndex(key)
+			switch srcElement.Kind() {
+			case reflect.Chan, reflect.Func, reflect.Map, reflect.Interface, reflect.Slice:
+				if srcElement.IsNil() {
+					if overwrite {
+						dst.SetMapIndex(key, srcElement)
+					}
+					continue
+				}
+				fallthrough
+			default:
+				if !srcElement.CanInterface() {
+					continue
+				}
+				switch reflect.TypeOf(srcElement.Interface()).Kind() {
+				case reflect.Struct:
+					fallthrough
+				case reflect.Ptr:
+					fallthrough
+				case reflect.Map:
+					srcMapElm := srcElement
+					dstMapElm := dstElement
+					if srcMapElm.CanInterface() {
+						srcMapElm = reflect.ValueOf(srcMapElm.Interface())
+						if dstMapElm.IsValid() {
+							dstMapElm = reflect.ValueOf(dstMapElm.Interface())
+						}
+					}
+					if err = deepMerge(dstMapElm, srcMapElm, visited, depth+1, config); err != nil {
+						return
+					}
+				case reflect.Slice:
+					srcSlice := reflect.ValueOf(srcElement.Interface())
+
+					var dstSlice reflect.Value
+					if !dstElement.IsValid() || dstElement.IsNil() {
+						dstSlice = reflect.MakeSlice(srcSlice.Type(), 0, srcSlice.Len())
+					} else {
+						dstSlice = reflect.ValueOf(dstElement.Interface())
+					}
+
+					if (!isEmptyValue(src) || overwriteWithEmptySrc || overwriteSliceWithEmptySrc) && (overwrite || isEmptyValue(dst)) && !config.AppendSlice && !sliceDeepCopy {
+						if typeCheck && srcSlice.Type() != dstSlice.Type() {
+							return fmt.Errorf("cannot override two slices with different type (%s, %s)", srcSlice.Type(), dstSlice.Type())
+						}
+						dstSlice = srcSlice
+					} else if config.AppendSlice {
+						if srcSlice.Type() != dstSlice.Type() {
+							return fmt.Errorf("cannot append two slices with different type (%s, %s)", srcSlice.Type(), dstSlice.Type())
+						}
+						dstSlice = reflect.AppendSlice(dstSlice, srcSlice)
+					} else if sliceDeepCopy {
+						i := 0
+						for ; i < srcSlice.Len() && i < dstSlice.Len(); i++ {
+							srcElement := srcSlice.Index(i)
+							dstElement := dstSlice.Index(i)
+
+							if srcElement.CanInterface() {
+								srcElement = reflect.ValueOf(srcElement.Interface())
+							}
+							if dstElement.CanInterface() {
+								dstElement = reflect.ValueOf(dstElement.Interface())
+							}
+
+							if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
+								return
+							}
+						}
+
+					}
+					dst.SetMapIndex(key, dstSlice)
+				}
+			}
+			if dstElement.IsValid() && !isEmptyValue(dstElement) && (reflect.TypeOf(srcElement.Interface()).Kind() == reflect.Map || reflect.TypeOf(srcElement.Interface()).Kind() == reflect.Slice) {
+				continue
+			}
+
+			if srcElement.IsValid() && ((srcElement.Kind() != reflect.Ptr && overwrite) || !dstElement.IsValid() || isEmptyValue(dstElement)) {
+				if dst.IsNil() {
+					dst.Set(reflect.MakeMap(dst.Type()))
+				}
+				dst.SetMapIndex(key, srcElement)
+			}
+		}
+	case reflect.Slice:
+		if !dst.CanSet() {
+			break
+		}
+		if (!isEmptyValue(src) || overwriteWithEmptySrc || overwriteSliceWithEmptySrc) && (overwrite || isEmptyValue(dst)) && !config.AppendSlice && !sliceDeepCopy {
+			dst.Set(src)
+		} else if config.AppendSlice {
+			if src.Type() != dst.Type() {
+				return fmt.Errorf("cannot append two slice with different type (%s, %s)", src.Type(), dst.Type())
+			}
+			dst.Set(reflect.AppendSlice(dst, src))
+		} else if sliceDeepCopy {
+			for i := 0; i < src.Len() && i < dst.Len(); i++ {
+				srcElement := src.Index(i)
+				dstElement := dst.Index(i)
+				if srcElement.CanInterface() {
+					srcElement = reflect.ValueOf(srcElement.Interface())
+				}
+				if dstElement.CanInterface() {
+					dstElement = reflect.ValueOf(dstElement.Interface())
+				}
+
+				if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
+					return
+				}
+			}
+		}
+	case reflect.Ptr:
+		fallthrough
+	case reflect.Interface:
+		if isReflectNil(src) {
+			if overwriteWithEmptySrc && dst.CanSet() && src.Type().AssignableTo(dst.Type()) {
+				dst.Set(src)
+			}
+			break
+		}
+
+		if src.Kind() != reflect.Interface {
+			if dst.IsNil() || (src.Kind() != reflect.Ptr && overwrite) {
+				if dst.CanSet() && (overwrite || isEmptyValue(dst)) {
+					dst.Set(src)
+				}
+			} else if src.Kind() == reflect.Ptr {
+				if err = deepMerge(dst.Elem(), src.Elem(), visited, depth+1, config); err != nil {
+					return
+				}
+			} else if dst.Elem().Type() == src.Type() {
+				if err = deepMerge(dst.Elem(), src, visited, depth+1, config); err != nil {
+					return
+				}
+			} else {
+				return ErrDifferentArgumentsTypes
+			}
+			break
+		}
+
+		if dst.IsNil() || overwrite {
+			if dst.CanSet() && (overwrite || isEmptyValue(dst)) {
+				dst.Set(src)
+			}
+			break
+		}
+
+		if dst.Elem().Kind() == src.Elem().Kind() {
+			if err = deepMerge(dst.Elem(), src.Elem(), visited, depth+1, config); err != nil {
+				return
+			}
+			break
+		}
+	default:
+		mustSet := (isEmptyValue(dst) || overwrite) && (!isEmptyValue(src) || overwriteWithEmptySrc)
+		if mustSet {
+			if dst.CanSet() {
+				dst.Set(src)
+			} else {
+				dst = src
+			}
+		}
+	}
+
+	return
+}
+
+// Merge will fill any empty for value type attributes on the dst struct using corresponding
+// src attributes if they themselves are not empty. dst and src must be valid same-type structs
+// and dst must be a pointer to struct.
+// It won't merge unexported (private) fields and will do recursively any exported field.
+func Merge(dst, src interface{}, opts ...func(*Config)) error {
+	return merge(dst, src, opts...)
+}
+
+// MergeWithOverwrite will do the same as Merge except that non-empty dst attributes will be overridden by
+// non-empty src attribute values.
+// Deprecated: use Merge(…) with WithOverride
+func MergeWithOverwrite(dst, src interface{}, opts ...func(*Config)) error {
+	return merge(dst, src, append(opts, WithOverride)...)
+}
+
+// WithTransformers adds transformers to merge, allowing to customize the merging of some types.
+func WithTransformers(transformers Transformers) func(*Config) {
+	return func(config *Config) {
+		config.Transformers = transformers
+	}
+}
+
+// WithOverride will make merge override non-empty dst attributes with non-empty src attributes values.
+func WithOverride(config *Config) {
+	config.Overwrite = true
+}
+
+// WithOverwriteWithEmptyValue will make merge override non empty dst attributes with empty src attributes values.
+func WithOverwriteWithEmptyValue(config *Config) {
+	config.Overwrite = true
+	config.overwriteWithEmptyValue = true
+}
+
+// WithOverrideEmptySlice will make merge override empty dst slice with empty src slice.
+func WithOverrideEmptySlice(config *Config) {
+	config.overwriteSliceWithEmptyValue = true
+}
+
+// WithAppendSlice will make merge append slices instead of overwriting it.
+func WithAppendSlice(config *Config) {
+	config.AppendSlice = true
+}
+
+// WithTypeCheck will make merge check types while overwriting it (must be used with WithOverride).
+func WithTypeCheck(config *Config) {
+	config.TypeCheck = true
+}
+
+// WithSliceDeepCopy will merge slice element one by one with Overwrite flag.
+func WithSliceDeepCopy(config *Config) {
+	config.sliceDeepCopy = true
+	config.Overwrite = true
+}
+
+func merge(dst, src interface{}, opts ...func(*Config)) error {
+	if dst != nil && reflect.ValueOf(dst).Kind() != reflect.Ptr {
+		return ErrNonPointerAgument
+	}
+	var (
+		vDst, vSrc reflect.Value
+		err        error
+	)
+
+	config := &Config{}
+
+	for _, opt := range opts {
+		opt(config)
+	}
+
+	if vDst, vSrc, err = resolveValues(dst, src); err != nil {
+		return err
+	}
+	if vDst.Type() != vSrc.Type() {
+		return ErrDifferentArgumentsTypes
+	}
+	return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0, config)
+}
+
+// IsReflectNil is the reflect value provided nil
+func isReflectNil(v reflect.Value) bool {
+	k := v.Kind()
+	switch k {
+	case reflect.Interface, reflect.Slice, reflect.Chan, reflect.Func, reflect.Map, reflect.Ptr:
+		// Both interface and slice are nil if first word is 0.
+		// Both are always bigger than a word; assume flagIndir.
+		return v.IsNil()
+	default:
+		return false
+	}
+}
diff --git a/vendor/github.com/imdario/mergo/mergo.go b/vendor/github.com/imdario/mergo/mergo.go
new file mode 100644
index 0000000..3cc926c
--- /dev/null
+++ b/vendor/github.com/imdario/mergo/mergo.go
@@ -0,0 +1,78 @@
+// Copyright 2013 Dario Castañé. All rights reserved.
+// 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.
+
+// Based on src/pkg/reflect/deepequal.go from official
+// golang's stdlib.
+
+package mergo
+
+import (
+	"errors"
+	"reflect"
+)
+
+// Errors reported by Mergo when it finds invalid arguments.
+var (
+	ErrNilArguments                = errors.New("src and dst must not be nil")
+	ErrDifferentArgumentsTypes     = errors.New("src and dst must be of same type")
+	ErrNotSupported                = errors.New("only structs and maps are supported")
+	ErrExpectedMapAsDestination    = errors.New("dst was expected to be a map")
+	ErrExpectedStructAsDestination = errors.New("dst was expected to be a struct")
+	ErrNonPointerAgument           = errors.New("dst must be a pointer")
+)
+
+// During deepMerge, must keep track of checks that are
+// in progress.  The comparison algorithm assumes that all
+// checks in progress are true when it reencounters them.
+// Visited are stored in a map indexed by 17 * a1 + a2;
+type visit struct {
+	ptr  uintptr
+	typ  reflect.Type
+	next *visit
+}
+
+// From src/pkg/encoding/json/encode.go.
+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:
+		if v.IsNil() {
+			return true
+		}
+		return isEmptyValue(v.Elem())
+	case reflect.Func:
+		return v.IsNil()
+	case reflect.Invalid:
+		return true
+	}
+	return false
+}
+
+func resolveValues(dst, src interface{}) (vDst, vSrc reflect.Value, err error) {
+	if dst == nil || src == nil {
+		err = ErrNilArguments
+		return
+	}
+	vDst = reflect.ValueOf(dst).Elem()
+	if vDst.Kind() != reflect.Struct && vDst.Kind() != reflect.Map {
+		err = ErrNotSupported
+		return
+	}
+	vSrc = reflect.ValueOf(src)
+	// We check if vSrc is a pointer to dereference it.
+	if vSrc.Kind() == reflect.Ptr {
+		vSrc = vSrc.Elem()
+	}
+	return
+}
diff --git a/vendor/gopkg.in/yaml.v2/apic.go b/vendor/gopkg.in/yaml.v2/apic.go
index 1f7e87e..d2c2308 100644
--- a/vendor/gopkg.in/yaml.v2/apic.go
+++ b/vendor/gopkg.in/yaml.v2/apic.go
@@ -86,6 +86,7 @@
 		raw_buffer: make([]byte, 0, output_raw_buffer_size),
 		states:     make([]yaml_emitter_state_t, 0, initial_stack_size),
 		events:     make([]yaml_event_t, 0, initial_queue_size),
+		best_width: -1,
 	}
 }
 
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 6e2ad93..caebce8 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -16,8 +16,6 @@
 github.com/eapache/go-xerial-snappy
 # github.com/eapache/queue v1.1.0
 github.com/eapache/queue
-# github.com/ghodss/yaml v1.0.0
-github.com/ghodss/yaml
 # github.com/golang/protobuf v1.3.2
 github.com/golang/protobuf/descriptor
 github.com/golang/protobuf/jsonpb
@@ -51,6 +49,8 @@
 github.com/grpc-ecosystem/grpc-gateway/utilities
 # github.com/hashicorp/go-uuid v1.0.2
 github.com/hashicorp/go-uuid
+# github.com/imdario/mergo v0.3.11
+github.com/imdario/mergo
 # github.com/jcmturner/gofork v1.0.0
 github.com/jcmturner/gofork/encoding/asn1
 github.com/jcmturner/gofork/x/crypto/pbkdf2
@@ -195,7 +195,7 @@
 # gopkg.in/jcmturner/rpc.v1 v1.1.0
 gopkg.in/jcmturner/rpc.v1/mstypes
 gopkg.in/jcmturner/rpc.v1/ndr
-# gopkg.in/yaml.v2 v2.2.8
+# gopkg.in/yaml.v2 v2.3.0
 gopkg.in/yaml.v2
 # gotest.tools v2.2.0+incompatible
 gotest.tools/assert