Updated openstack/openstack
Project: openstack/oslo.messaging  84b36f06ca09f9e7c1ffb9f275c291cd9b9e3919

Port to Python 3

This patch enables running all the unit tests (except the qpid ones that
are skipped) under Python 3.3 and Python 3.4.

Change-Id: I711663b4eedfb3cdeea7e6da7d28c6b92663e611