Add fwaas_driver.ini to setup.cfg

Change-Id: Ie8157c0df343fb1009e7bc5b3ed2f2d4b0d0afec
Closes-Bug: 1258585
(cherry picked from commit daf0d68f9fc1f878ae29061dc43c19fd3e4950ef)
NVP: propagate net-gw update to backend

When a network gateway's name is updated, propagate the
update to the backend.

Closes-Bug: #1261334
Change-Id: Icaae84e7f5373946e8c82e0e519528409925dd9d
Merge "NVP: propagate net-gw update to backend" into stable/havana
Merge "Add fwaas_driver.ini to setup.cfg" into stable/havana
Merge branch 'stable/havana' of https://github.com/openstack/quantum into havana/stable