Add special handling of neutron-server service startup to fix race
Add special handling of neutron-server service startup to fix race

Neutron will populate the database with some data as soon as the
neutron-server service is started; we want this to happen from a
single node before normal Pacemaker initialization.

Change-Id: I422972502fbb10ddae3201464bbd6885749de31e
Closes-Bug: 1467904
Closes-Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1233061

bcrochet/tripleo-heat-templates,wyg3958/tripleo-heat-templates,bcrochet/tripleo-heat-templates,rdo-management/tripleo-heat-templates,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,trozet/tripleo-heat-templates,trozet/opnfv-tht,trozet/opnfv-tht,trozet/opnfv-tht,rdo-management/tripleo-heat-templates,wyg3958/tripleo-heat-templates,dprince/tripleo-heat-templates,bcrochet/tripleo-heat-templates,openstack/tripleo-heat-templates,trozet/tripleo-heat-templates