added an option to disable the tweak while in the now playing app

-Added iOS 9 support
-Added preference pane to disable the tweak on the lockscreen and displaying album name as the title of the banner
-Added support to the folowing apps: SoundCloud, Saavn, VOX, Doppi and Tidal.

also, changed the title and message of the notification. (old was title = song name, message = artist) (new is title = now playing, message = song name \nby: artist)

will add a preference pane before submitting to cydia.