back button handling + native mp3 scanning
Added the recently played/intro screen.
Added toptracks to the recent view
Merge branch 'master' of https://github.com/lucienimmink/MobileMusicDB

Conflicts:
	platforms/android/AndroidManifest.xml
	platforms/android/assets/www/config.xml
	platforms/android/assets/www/js/controllers/AppController.js
	platforms/android/assets/www/js/controllers/SettingsController.js
	platforms/android/bin/AndroidManifest.xml
	platforms/android/bin/MobileMusicDB-debug-unaligned.apk
	platforms/android/bin/MobileMusicDB-debug.apk
	platforms/android/bin/MobileMusicDB.ap_
	platforms/android/bin/build.prop
	platforms/android/bin/classes.dex
	platforms/android/bin/dexedLibs/cordova-3.1.0-f730a9b61a25fcc5682fcfafe21dbbe2.jar
	platforms/android/src/org/arielext/mp3scan/Mp3scan.java
	plugins/org.arielext.mp3scan/src/android/Mp3scan.java
	www/config.xml
	www/js/controllers/AppController.js
	www/js/controllers/SettingsController.js