Stomp.py

* Fix package info on setup (missing adapter package causes problems for command line client
- see https://github.com/jasonrbriggs/stomp.py/issues/7 for more info

* Fix minor issue with backward uuid func
* Fixes for error number handling
* Fix for message listener return values

* Fix return on get_listener method (https://github.com/jasonrbriggs/stomp.py/issues/4)

* Fix problem with heartbeat listener (https://github.com/jasonrbriggs/stomp.py/issues/4)
* Add alternate aliases for the connection classes
* Add initial Version multicast adapter (providing an interface to use the stomp.py API and send messages via multicast)
- note: work in progress

* Fix missing headers in connect func
* Throw ConnectFailedException when a connection fails in the 1.2 protocol - if wait=True is set

* Add command-line subscription listener. So you can do:
> stomp -H localhost -P 61613 -L /queue/test
* Add verbose option to command-line client (verbose "on" by default, if "off", headers aren't written to stdout)
* Fix problem with connect wait (should not wait if the connection fails)
* Throw exception when the connect fails (only if wait=True)
* Add PrintingListener (useful for debugging)