Added support for ruote-stomp.

No big deal...but wanted to let you know I've added support for Stomp as an alternative to AMQP.  Take a look, let me know if you'd be interested in including it - and if not, we'll probably do something different (am also looking for a way to get a Warble-produced JAR - and didn't have any luck with Daemon-Kit there).  Thanks for the effort, and seriously if you don't think it makes any sense to include I'd understand.