Updated openstack/openstack
Project: openstack/tempest  47e3ac11fddeed90819411a8291ad392b39a7402
null
Adapt documentation for negative testing

With the introduction of the new negative testing framework the workflow
for new test has changed.

Partially-implements: bp negative-tests
Change-Id: I522c2be227a120a6a714349fa29b31e60b5e0bf4
Updated openstack/openstack
Project: openstack/nova  6dab229484a1c3fab9292f94f36488ec45f9f29d
null
Disable IGMP snooping on hybrid Linux bridge

By default, Linux bridge activates the IGMP snooping on his switch.
It is unnecessarily on Linux bridge created by OVS/VIF hybrid vif
drivers because that switch is limited two ports.

That patch also refactoring OVS and IVS plug and unplug unit tests of the
hybrid drivers.

Closes-Bug: #1276038
Change-Id: Ib8bb1874d7a300fddffdc76ba67851109248bebf