bump beta3
Adding equality to pinning on environment (required by Chef Server v11, fixes #760)

Conflicts:
	lib/berkshelf/berksfile.rb
Fix broken spec
Fix broken cucumber feature

Conflicts:
	features/apply_command.feature
Merge pull request #870 from RiotGames/equality_pinning_forward_port

Equality pinning forward port
Workaround issue where Cygwin Git will create a directory called C: in
the current directory when using berkshelf through vagrant.
Merge pull request #872 from douglaswth/workaround_cygwin_git_on_windows

Workaround issue where Cygwin Git will create a directory called C: in
Merge branch 'master' of https://github.com/RiotGames/berkshelf