Checkout openstack-integration from master
Checkout openstack-integration from master

Since stable/liberty was created, let's now checkout master to prepare
the next release (Mitaka).

Change-Id: Ia00fb94756b71d248c9e0d0e2639da2636653f5a

openstack/puppet-vswitch,rdo-puppet-modules/puppet-vswitch,openstack/puppet-vswitch