Added license support to the glide.yaml file
diff --git a/LICENSE b/LICENSE
index 5af85b0..f342051 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 Glide
 The Masterminds
-Copyright (C) 2014-2015, Matt Butcher and Matt Farina
+Copyright (C) 2014-2016, Matt Butcher and Matt Farina
 Copyright (C) 2015, Google
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/cfg/config.go b/cfg/config.go
index 8e3e107..3718e93 100644
--- a/cfg/config.go
+++ b/cfg/config.go
@@ -13,7 +13,12 @@
 
 // Config is the top-level configuration object.
 type Config struct {
-	Name       string       `yaml:"package"`
+	Name string `yaml:"package"`
+
+	// License provides either a SPDX license or a path to a file containing
+	// the license. For more information on SPDX see http://spdx.org/licenses/.
+	// When more than one license an SPDX expression can be used.
+	License    string       `yaml:"license,omitempty"`
 	Ignore     []string     `yaml:"ignore,omitempty"`
 	Imports    Dependencies `yaml:"import"`
 	DevImports Dependencies `yaml:"devimport,omitempty"`
@@ -22,6 +27,7 @@
 // A transitive representation of a dependency for importing and exploting to yaml.
 type cf struct {
 	Name       string       `yaml:"package"`
+	License    string       `yaml:"license,omitempty"`
 	Ignore     []string     `yaml:"ignore,omitempty"`
 	Imports    Dependencies `yaml:"import"`
 	DevImports Dependencies `yaml:"devimport,omitempty"`
@@ -50,6 +56,7 @@
 		return err
 	}
 	c.Name = newConfig.Name
+	c.License = newConfig.License
 	c.Ignore = newConfig.Ignore
 	c.Imports = newConfig.Imports
 	c.DevImports = newConfig.DevImports
@@ -63,8 +70,9 @@
 // MarshalYAML is a hook for gopkg.in/yaml.v2 in the marshaling process
 func (c *Config) MarshalYAML() (interface{}, error) {
 	newConfig := &cf{
-		Name:   c.Name,
-		Ignore: c.Ignore,
+		Name:    c.Name,
+		License: c.License,
+		Ignore:  c.Ignore,
 	}
 	i, err := c.Imports.Clone().DeDupe()
 	if err != nil {
@@ -112,6 +120,7 @@
 func (c *Config) Clone() *Config {
 	n := &Config{}
 	n.Name = c.Name
+	n.License = c.License
 	n.Ignore = c.Ignore
 	n.Imports = c.Imports.Clone()
 	n.DevImports = c.DevImports.Clone()
diff --git a/cfg/config_test.go b/cfg/config_test.go
index 03ba08e..93b7876 100644
--- a/cfg/config_test.go
+++ b/cfg/config_test.go
@@ -8,6 +8,7 @@
 
 var yml = `
 package: fake/testing
+license: MIT
 import:
   - package: github.com/kylelemons/go-gypsy
     subpackages:
@@ -45,6 +46,10 @@
 		t.Errorf("Inaccurate name found %s", cfg.Name)
 	}
 
+	if cfg.License != "MIT" {
+		t.Errorf("Inaccurate license found %s", cfg.License)
+	}
+
 	found := false
 	found2 := false
 	for _, i := range cfg.Imports {
@@ -82,6 +87,9 @@
 	if cfg2.Name != "fake/testing" {
 		t.Error("Config cloning failed")
 	}
+	if cfg2.License != "MIT" {
+		t.Error("Config cloning failed to copy License")
+	}
 	cfg.Name = "foo"
 
 	if cfg.Name == cfg2.Name {