libsaria: Added TODO idea to playlist

I want to do type checking after loading objects.  This can be done once
during storage.load_obj, rather than after load_obj

libsaria/sources/playlist/playlist.py

@@ -14,6 +14,7 @@ song_set  = set()
 def load():
 	global song_list
 	plist_list = storage.load_obj("playlist", list)
+	# TODO: Can I do this check during load_obj???
 	if plist_list.__class__ != list:
 		plist_list = []
 	lock_plist()