Added command to display current version of homesick.
Merge branch 'master' of github.com:technicalpickles/homesick
Added libnotify Gem on *nix systems in case people want to use it for
Guard notifications.
Merge branch 'master' of github.com:technicalpickles/homesick
Updated README for .homesickrc.
Merge remote-tracking branch 'upstream/master' into no-jeweler

Conflicts:
	Gemfile
	Rakefile