Register postgres_group in trove config
Register postgres_group in trove config

Change-Id: I9e2c4c166550fbfe77c394e0b5220220d07469df
Closes-Bug: #1367467

openstack/trove,mmasaki/trove,cp16net/trove,hplustree/trove,zhujzhuo/openstack-trove,zhujzhuo/openstack-trove,zhujzhuo/openstack-trove,redhat-openstack/trove,cp16net/trove,redhat-openstack/trove,hplustree/trove,redhat-openstack/trove,zhangg/trove,changsimon/trove,mmasaki/trove,openstack/trove,changsimon/trove,zhangg/trove,cp16net/trove,fabian4/trove,mmasaki/trove,fabian4/trove,changsimon/trove,fabian4/trove