Rewrite of PlaylistLoader to new, much simpler, version. Maybe too simple, but there seemed to be a lot of unneeded cruft in the old one. Currently supports loading of local and remote .pls and .m3u files.

I dont know if the way I hook directly into the PlaylistModel is correct, or even safe, but it does ensure that no matter how you load the playlist, it is passed to the PlaylistLoader.

Also, this makes the shoutcast service sort of usable.

~yay