Open Stack

As we agreed in the new documentation retention policy spec [1], I need
to restore the stable/mitaka branch for the openstack/openstack-manuals
repository and then trigger a build of the mitaka version of the guides.
I have a local patch ready that works, so I believe the next steps are
to create the branch, propose the patch, and fix whatever infra issues
we have due to running the change on such an old branch.

I believe I have the permissions needed to create the branch from the
existing mitaka-eol tag. Before I do that, however, I wanted to make
sure there are no additional steps needed. Should we delete the tag, for
example? Or is creating the branch sufficient?

Doug

[1] http://specs.openstack.org/openstack/docs-specs/specs/queens/retention-policy.html