Added Play/Pause/Skip messages and unbind call in onDestroy
Added comment to the top of ServiceLocator, talking about pitfalls when using
services.

Changed Runnable to a more specific interface, for on bind listeners.
Fixed StringMessage sending to support both fans and hosts
Merge pull request #36 from theJenix/messaging_service

Major refactor of connection code
Merge branch 'master' of git://github.com/TheLastCrusade/fanClub