Update Go Yaml

- changes license to Apache from LGPLv3
- small fixes for Go 1.8, parsing.

Signed-off-by: Justin Cormack <justin.cormack@docker.com>

vendor.conf

@@ -139,4 +139,4 @@ github.com/mitchellh/mapstructure f3009df150dadf309fdee4a54ed65c124afad715
 github.com/xeipuuv/gojsonpointer e0fe6f68307607d540ed8eac07a342c33fa1b54a
 github.com/xeipuuv/gojsonreference e02fc20de94c78484cd5ffb007f8af96be030a45
 github.com/xeipuuv/gojsonschema 93e72a773fade158921402d6a24c819b48aba29d
-gopkg.in/yaml.v2 a83829b6f1293c91addabc89d0571c246397bbf4
+gopkg.in/yaml.v2 4c78c975fe7c825c6d1466c42be594d1d6f3aba6

vendor/gopkg.in/yaml.v2/LICENSE

@@ -1,188 +1,13 @@
+Copyright 2011-2016 Canonical Ltd.
 
-Copyright (c) 2011-2014 - Canonical Inc.
+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
 
-This software is licensed under the LGPLv3, included below.
+    http://www.apache.org/licenses/LICENSE-2.0
 
-As a special exception to the GNU Lesser General Public License version 3
+Unless required by applicable law or agreed to in writing, software
-("LGPL3"), the copyright holders of this Library give you permission to
+distributed under the License is distributed on an "AS IS" BASIS,
-convey to a third party a Combined Work that links statically or dynamically
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-to this Library without providing any Minimal Corresponding Source or
+See the License for the specific language governing permissions and
-Minimal Application Code as set out in 4d or providing the installation
+limitations under the License.
-information set out in section 4e, provided that you comply with the other
-provisions of LGPL3 and provided that you meet, for the Application the
-terms and conditions of the license(s) which apply to the Application.
-
-Except as stated in this special exception, the provisions of LGPL3 will
-continue to comply in full to this Library. If you modify this Library, you
-may apply this exception to your version of this Library, but you are not
-obliged to do so. If you do not wish to do so, delete this exception
-statement from your version. This exception does not (and cannot) modify any
-license terms which apply to the Application, with which you must still
-comply.
-
-
-                   GNU LESSER GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-
-  This version of the GNU Lesser General Public License incorporates
-the terms and conditions of version 3 of the GNU General Public
-License, supplemented by the additional permissions listed below.
-
-  0. Additional Definitions.
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-  As used herein, "this License" refers to version 3 of the GNU Lesser
-General Public License, and the "GNU GPL" refers to version 3 of the GNU
-General Public License.
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-  "The Library" refers to a covered work governed by this License,
-other than an Application or a Combined Work as defined below.
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-  An "Application" is any work that makes use of an interface provided
-by the Library, but which is not otherwise based on the Library.
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-object code and/or source code for the Application, including any data
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-Application, but excluding the System Libraries of the Combined Work.
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-  1. Exception to Section 3 of the GNU GPL.
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-  You may convey a covered work under sections 3 and 4 of this License
-without being bound by section 3 of the GNU GPL.
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-  2. Conveying Modified Versions.
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-  If you modify a copy of the Library, and, in your modifications, a
-facility refers to a function or data to be supplied by an Application
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-   ensure that, in the event an Application does not supply the
-   function or data, the facility still operates, and performs
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-   b) under the GNU GPL, with none of the additional permissions of
-   this License applicable to that copy.
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-  3. Object Code Incorporating Material from Library Header Files.
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-   you use option 4d0, the Installation Information must accompany
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-   Information in the manner specified by section 6 of the GNU GPL
-   for conveying Corresponding Source.)
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-  5. Combined Libraries.
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-Library side by side in a single library together with other library
-facilities that are not Applications and are not covered by this
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-choice, if you do both of the following:
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-   a) Accompany the combined library with a copy of the same work based
-   on the Library, uncombined with any other library facilities,
-   conveyed under the terms of this License.
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-   b) Give prominent notice with the combined library that part of it
-   is a work based on the Library, and explaining where to find the
-   accompanying uncombined form of the same work.
-
-  6. Revised Versions of the GNU Lesser General Public License.
-
-  The Free Software Foundation may publish revised and/or new versions
-of the GNU Lesser General Public License from time to time. Such new
-versions will be similar in spirit to the present version, but may
-differ in detail to address new problems or concerns.
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-Library as you received it specifies that a certain numbered version
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-applies to it, you have the option of following the terms and
-conditions either of that published version or of any later version
-published by the Free Software Foundation. If the Library as you
-received it does not specify a version number of the GNU Lesser
-General Public License, you may choose any version of the GNU Lesser
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-  If the Library as you received it specifies that a proxy can decide
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vendor/gopkg.in/yaml.v2/decode.go

@@ -251,7 +251,7 @@ func (d *decoder) callUnmarshaler(n *node, u Unmarshaler) (good bool) {
 //
 // If n holds a null value, prepare returns before doing anything.
 func (d *decoder) prepare(n *node, out reflect.Value) (newout reflect.Value, unmarshaled, good bool) {
-	if n.tag == yaml_NULL_TAG || n.kind == scalarNode && n.tag == "" && (n.value == "null" || n.value == "") {
+	if n.tag == yaml_NULL_TAG || n.kind == scalarNode && n.tag == "" && (n.value == "null" || n.value == "" && n.implicit) {
 		return out, false, false
 	}
 	again := true

vendor/gopkg.in/yaml.v2/resolve.go

@@ -3,6 +3,7 @@ package yaml
 import (
 	"encoding/base64"
 	"math"
+	"regexp"
 	"strconv"
 	"strings"
 	"unicode/utf8"
@@ -80,6 +81,8 @@ func resolvableTag(tag string) bool {
 	return false
 }
 
+var yamlStyleFloat = regexp.MustCompile(`^[-+]?[0-9]*\.?[0-9]+([eE][-+][0-9]+)?$`)
+
 func resolve(tag string, in string) (rtag string, out interface{}) {
 	if !resolvableTag(tag) {
 		return tag, in
@@ -135,10 +138,12 @@ func resolve(tag string, in string) (rtag string, out interface{}) {
 			if err == nil {
 				return yaml_INT_TAG, uintv
 			}
+			if yamlStyleFloat.MatchString(plain) {
 				floatv, err := strconv.ParseFloat(plain, 64)
 				if err == nil {
 					return yaml_FLOAT_TAG, floatv
 				}
+			}
 			if strings.HasPrefix(plain, "0b") {
 				intv, err := strconv.ParseInt(plain[2:], 2, 64)
 				if err == nil {