added xmpp4r/muc rooms so notifications can be sent to a room
added service, service_url, user_id so that messages can be sent to any jabber client and to rooms
added support for any jabber and ability to send to rooms
gtalk now has more functionality
adderd xmpp4r/muc for gtalk rooms
extra tests for room support as well
check service is accepted with connect
xmpp migration for seemless update
Merge pull request #383 from damau/master

Support for multiple XMPP clients and ability to send to a room and user