Build against latest 4.3 SDK.
Migrated to Android Studio with Gradle, use ActionBar from support library.
Updated to lates ZXing integration code.
Added MusicBrainz API as git submodule.
Added Vietnamese translation (by Anh Phan)
Make sure the free barcode scanner app is prefered over barcode scanner+
Use platform's base theme with dark action bar.
Prepare release 1.2.
Added some xhdpi icons and use new preferences icon.