only need neutron on headnodes
get rid of neutron api-paste file
upgrade to cassandra 1.2 so we can use virtual nodes
don't include self in seeds unles it's the first node
setup contrail after keystone is up
simplify contrail recipe
removing empty admin_token bug workaround
remove extra deps from build_bins.sh since they're no longer needed
tweak neutron.conf for contrail settings