Updated openstack/openstack
Project: openstack/heat  44b78cd55fbb2568082f29a8ee089a73a2f30828
null
Switch over to oslosphinx

oslosphinx is now available as a replacement for oslo.sphinx that
won't conflict with oslo.config in virtual envs

Change-Id: I7dc3349c8102cc8f358de7e0088128b6705c5f8e
Closes-Bug: #1277168