Fixes #18; Adding in support for handling radio station output in player info, clearing track info each time
Fixes #18; Adding in support for handling radio station output in player info, clearing track info each time

Fixes:
 - the whole state can't be reset each time. lots of infos are lost
   (volume, playerState, ...) -> just reset the current track

Conflicts:
	lib/player.js

cederigo/node-sonos-discovery