Fiddle command protocol

The fiddle command protocol can be used to script the music server.

Command	Description
play	Start playing songs from the current playlist
playlist [playlist]	Playlist should be one of the files that can be found in the playlist config directory (~/.fiddle/playlists/)
rate [num]	Gives a rate to the currently playing song. Num can range from 1-5.
pause	Pause the currently playing song. Play will proceed at the place where the song was paused.
next	Move to the next song in the playlist. If not playing the server will not start.
prev	Move to the previous song in the playlist. If not playing the server will not start.
random on|off	Play songs in a random sequence.
repeat on|off	Repeats current playlist.
update	Adds new music files to the music database.