track artwork support, also, a monkeypatch to a monkeypatch:  disable id3js'
DataView method which attempts to implement "false synch" correction but ends
up breaking uint32s when the id3 flags indicate false synch correction is not
needed.  It's a quick hack and one I don't really want to keep for very long.
A better solution is to probably find an id3 lib that I don't have to hack on
so much.
track numbers