Songbar now sizes its scrolling to fit either space to bottom of the window,  or top of the footer (whichever is smaller).
frontend SCTrack now handles removing tracks that don't exist (or at least should).
Fixed some bugs in frontend SCTrack, and now only fetch if the track kind is missing (indicating it wasn't loaded direct from soundcloud).
We now pre-cache soundcloud details on the server side to reduce page load times.