tomahawk-android: add playback preferences and resume on headset

* add the code for a new preferences category
* add a preference to resume paused music if a headset was plugged in - default is false
tomahawk-android: update gitignore

* block lint file from eclipse getting through
tomahawk-android: add home as up to preferences menus

* also rename preference class - we have more than one now
Merge pull request #1 from tilal6991/master

Option added to resume playback by plugging a headset in.