The openstack.org pages now support https and our references to
the site should by default be one signed by the organization.
Change-Id: I0448c7bc0294db867bc1766da7aaf07912575dbe
Replace URLs for workflow documentation to appropriate parts of the
OpenStack Project Infrastructure Manual.
Change-Id: I77aa4152a903a0f1f47de20bb1a006d29f5a1bf2