Renamed service api config opts. Set default port to 8786
Renamed service api config opts.
Set default port to 8786

jcsp/manila,NetApp/manila,redhat-openstack/manila,vponomaryov/manila,sajuptpm/manila,weiting-chen/manila,NetApp/manila,jcsp/manila,bswartz/manila,aostapenko/manila,redhat-openstack/manila,aostapenko/manila,openstack/manila,aostapenko/manila,scality/manila,sajuptpm/manila,weiting-chen/manila,scality/manila,bswartz/manila,vponomaryov/manila,openstack/manila