User can now add shout and share checkin to Twitter and FB.
Fixed some technical errors.
Fixes after CR
Other fixes.
Merge remote-tracking branch 'upstream/unstable' into unstable

Conflicts:
	Gruntfile.js
	src/css/main.css
Merge pull request #33 from angelovdeodd/unstable

User can now add shout and share checkin to Twitter and FB.
Changed `undefined` to `null`.
Merge remote-tracking branch 'origin/unstable' into gps