Add module homebrew_cask
Handle homebrew_cask "nothing to list" corner case.
homebrew_cask: return False instead of True when nothing to list.
homebrew_cask: check err instead of out for "nothing to list".
Add homebrew_tap module.
Update tap version, changelog
Merge branch 'homebrew_cask' of git://github.com/danieljaouen/ansible into devel
Update cask version, changelog.