Updated version name to 3.0 in manifest.
Removed legacy Admob jar.
The number of times the app has been launched is saved as a preference and after a certain number of launches, the user is asked to rate the app. That certain number of launches is now saved in integers.xml.
Added null check for media_id when showing notification. Also closes previous song cursor if is open when setting the media id.
Make sure the user doesn't see the app rating beg dialog box again after they've dismissed it.
Merge branch 'master' of https://github.com/jeffington/PlayTunes