notification updates
* Show multi notifications in the HUD - instead of one after another
* Show multi notifications in the Dialog ( next/previous buttons )
* Dialog Notification has a button to show All now playing items in a springBoard ( item selected from dialog will be shown of course )
   left/right buttons work from this springboard
* Toggle to only show start, stop or all notifications
* Toggle to only show notification when playing a video, not playing a video, both or disable them completely
* Notifications are now shown on the home screen
Merge branch 'dev' of github.com:ljunkie/rarflix into dev