Fix "java.lang.NoSuchMethodError: android.app.Notification$Builder.setVisibility" execption.
Remove the small light line on the action bar to make it look more like material desgin.
Make the padding around each fragment smaller & remove 2nd actionbar line in library and download. The information is now in the actionbar.
Make layout & drawable naming more sane
- Safe delete wasn't that safe...
- renamed img_cover_grey_bg to album_art_frame