v1.6.3
	sonata freezes with gail/accessibility enabled during new library searching
	translations - bold, commas for arabic (ahmad farghal email)
	#3992: enabling/disabling outputs
	#4370: number in playlist
	contextual statusbar depending on tab opened? (michael email)
	save to playlist.. default to selected files? pref?
	tag editing - support for composer, disc
	song queue (mpd-git will be bringing it back)
	search results - show albums, artists, genres that match
	right-click on tab bar (michael email)
	0.15 has input support for last.fm radio

v1.7
	remove libegg? statusicon provides everything in gtk 2.16, not yet in pygtk
	albumartist tag for, e.g., VA albums; composer for classical
	plugin support
		- single instance, mmkeys (could remove dbus; faster on startup, less memory)
		- artwork
		- lyrics
		- system tray
		- audioscrobbler
		- popup notification
		- tag editing
		- #2419 dynamic playlist (patch)
		- #2454 Add as Next Track (patch)
		- #4007 stop after track ('single' command in 0.15)
		- #Zeroconf/avahi (patch)

Future:
	support for new idle command (waiting on python-mpd)
	work with mpd's new "allow authenticated local users to add any local file to the playlist"
		- waiting on python-mpd to implement unix socket paths
		- dnd from a file manager (implemented and untested because of above)
		- new library browsing mode to open any file?
		  remember: no tags and implications for remote mpd users.
	crop songs in current playlist?
	mpd statistics
	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/

clean-up
	extract duplicate code into functions, classes etc.
	document interfaces and implementation
	modularity:
		- limit module size to 1000 lines
		- limit dependencies between modules
	style:
		- rewrite unpythonic or complicated parts
		- fix reasonable pychecker/pylint warnings
	tests:
		- write automated tests
		- refactor code into parts that can be tested
	use the logging module:
		- add verbose and debug logging modes
		- log to file if not running on console
	exceptions:
		- add class restrictions to most "except:" clauses
		- add debug logging to most except clauses
	threading:
		- design, document, and implement a bug-free use of threads