More Tickets on BTS at: https://bts.keep-cool.org/

Things we need to do:
 * (0.1) implement search

Things we should do:
 * (0.1) support for MPD protocol (WIP)
 * (0.1) something to detect playlist changes
 * (0.1 #201) 'queue counter' for PLEs

Things it would be nice to have:
 * (0.2 #302 #303) x-fader
