Add abilitiy to set host bind port.

[akessler1ctr]

0001-add-host-binding-for-containers.zip

To run stomp.py in a container we need to expose the host's port to communicate with external brokers. The socket.create_connection function supports doing this as the third parameter source_address. Either using functions to pass the host,port tuple thru the connection's init or another function to set the port before we do the connect would fix this issue.

Attached patch of passing host tuple through connection classes to transport class

[jasonrbriggs]

Added as of v7.0.0