Updated openstack/openstack
Project: openstack/tempest  04e0292e18f8bc034b1fbf7097e62b15d0b24915

Adds doc for public_router_id in tempest.conf

Inexperienced users keep configuring this value even though it is kept for
legacy reasons only

Change-Id: Ib22b6c7f7a69736c6f9ab0c4349bd1374ab5afef