playlist: Add more TODOs
playlist: Add more TODOs

kotamat/pyspotify,mopidy/pyspotify,felix1m/pyspotify,felix1m/pyspotify,felix1m/pyspotify,kotamat/pyspotify,jodal/pyspotify,kotamat/pyspotify,jodal/pyspotify,jodal/pyspotify,mopidy/pyspotify