Comment 9 for bug 1383709

ML thread started about flipping the default replacement_policy for OS::Neutron::Port:

http://lists.openstack.org/pipermail/openstack-dev/2014-October/049376.html

I suspect, but have not yet proven, that will solve this issue. If there's some barrier to changing the default in heat, we'll have to change the property value in the tripleo-heat-templates (maybe we should do that anyway for compatibility with older versions of heat..)