v1.6
	code cleanup
		- making tabs
		- combine ListStore definitions (playlists, streams, etc)
		- remove_list_duplicates
		- local/remote/dnd artwork
	support for multiple genres?
	dynamic playlist?
	various artists in library views?
	stop after this track?
	
Future:
	lyrics -> ability to save changes
	test multiple streams at once..
	crop songs in current playlist?
	mpd statistics
	use GtkVolumeButton?
	allow additional columns for library (like current)?
	audioscrobbler - remove raise calls..
	better playlist support (mpd 0.13+ only):
		ability to view songs, reorder songs, remove songs, etc
	lazy loading of the treeview
		http://log.emmanuelebassi.net/documentation/lazy-loading/
		http://blogs.gnome.org/jamesh/2006/03/31/re-lazy-loading/
