Updated openstack/openstack
Project: openstack/python-heatclient  ea32f33f6e7770da09e33f0fb6ca79effc2c3495

Add a tox job for generating docs

Add a tox job to make it easier for developers to generate their
own docs before submitting a patch.

Change-Id: I9c53ce664b164003fe42ed03d1f850d954bf0971