v1.3.1
	merge button_press_event functions
	allow hiding progress bar
	"_Search" -> "S_earch"
	make self.profile_names and self.currsongformat2 translatable

v1.4
	pref for lyrics saving location..
	allow additional columns for library (like current)
	genre mode (genre -> artist -> album)
	better playlist support (mpd 0.13 only):
		playlist tab:
			ability to view songs, reorder songs, remove songs, etc
		current tab:
			- save... >
				new playlist...
				to existing playlist... ---> popup window with dropdown of playlists
				...
	make selection, dnd, more like thunar
	speed up sorting by manipulating model (generic functions to swap/move model items)
	lyrics -> ability to save changes
	
Future:
	libnotify?
	test multiple streams at once..
	crop songs in current playlist?
	mpd statistics
	dnd from other tabs to playlist tabs
	hover over album art -> show larger image in borderless popup after 0.5 sec?
	use GtkVolumeButton?
