included all build files necessary for command line + proguard fixes #97
Merge pull request #117 from mafrosis/develop

included all build files necessary for command line + proguard fixes #97
refactored cover art retrieval
Merge pull request #118 from mafrosis/develop

refactored cover art retrieval
Removed useless file
Renamed cover package
Updated android compatibility library
Last.FM downloader now requests extra large cover art
Layout work : Added volume slider

Also fixed some text positionning on tablets
Deleted old readme, added screenshots
Readme !
Oops, forgot some things
Updated readme screenshot

Also added tablet screenshot
Removed Artist Album Count, too slow.

MPD internal code remains
Changed int to long for some Album fields

Prevents a crash when a field is too long.
The exception is also now caught
Album Track Count enabled by default
Added info for vortexbox users, translated settings
Volume slider is now working again !
Removed useless "main menu" menu item
ActionBar's app icon back button now brings back to Now Playing from wherever you are