TODO
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 BACKEND:
     - MessageScheduler
        - implement changeTimeInterval()
        - Should we implement recording scheduling here
     - Notify
        - Add information to bubbles (recording objects required)
        - Execute conflict resolver dialog (seperate process to avoid GTK dependency?)
     - ImageCache
        - Improve performance (dir rename etc. could be done much more efficiently)
     - ContentManagementDialog
        - Closing window with (X)-button bugs (Emits CONTENT_CONF_UPDATED message twice)
     - MusicCache
        - Album art file changes should be optimized for performance!
          Very heavy at the moment
     - AlbumArtDownloader
        - Get Amazon licence for Entertainer and change the key
     - VideoMetadataSearch
        - Sometimes IMDB.update() fails! Threading problem? Should we use threads at all?
     - VideoThumbnailer
        - Should we move HASH gen to caches and give thumbfile as param?
     - VideoCache
        - Get video resolution and duration
        - Create thumbnail
        - Add support for local movie art

 FRONTEND:
	- GridMenu
		- Add feature that allows menu content to be scrolled around
		- Search feature for menu (user hits H and menu scrolls to correct pos)
 
 UTILS:
    - SystemTrayIcon
        - Quit doesn't work. Problem with GTK-threads? Does network thread end?