Updated openstack/openstack
Project: openstack/taskflow  a6b9fa10c803e0b2316b55c987f29c88dd9744de

Work toward Python 3.4 support and testing

Change-Id: Icd0a426e3dd8a44c64e8ba337b36131392715c08
Updated openstack/openstack
Project: openstack/taskflow  2e96516722b8941c1d95b39afc9ec38c5814b9d1

Add a docs virtualenv

The various projects are standardizing on a docs venv which
will eventually be called by the infra project to build the
docs for a project.

To enable our usage of this environment add a section so that
it can be called upon.

Change-Id: I420eb0d6e6f9f6f24bc493d4342478daba27ad1e