Merge pull request #440 from avuton/master

A few small patches
Java 1.7 (hello Diamonds !)
MPDOutput should implement toString for convinience
Add outputs fragment
Add layout previews
Outputs fragment is now nicely integrated into the library. Welcome back !
Add "play queue" to the navigation drawer. Fixes #437
Fix license spacing issue
Move padding to the card itself
Android XML settings for arrangement
New about header
Update readme
About window overhaul
Remove unnecessary (and ugly) padding
initial lockscreen / notification controls implementation
need to fix:
- initial hook when the app is first started
- fix play/pause from lockscreen
- add controls and customize the notification
- test, and fix bugs
now hooks up when the app is first started
fixed play/pause icon in notification
code cleanup & fixed remote client update
fixed some stuff with notification and remote control
added album/track cover to notification and remote control client
added expandable notification