Consolidate Neutron Networker services (BZ 1093414)

https://bugzilla.redhat.com/show_bug.cgi?id=1093414

Combine ovs and Neutron L3 services into single "Neutron Networker" service.
Service params for this hostgroup/role are now metadata-driven from the
puppetclasses.
Merge pull request #134 from sseago/consolidate-neutron-networker

Consolidate Neutron Networker services (BZ 1093414)
Change non-HA qpid params to amqp to match astapor changes for rabbitmq

re-running of 'rake db:seed' is needed.
Merge pull request #136 from sseago/rabbitmq

Change non-HA qpid params to amqp to match astapor changes for rabbitmq