HEAD-1125 make 'sdc-role create <server_uuid> <role>' able to create a zone on a specific server
HEAD-1125 make 'sdc-role create <server_uuid> <role>' able to create a zone on a specific server

numericillustration/sdc-headnode,kaizengarden/sdc-headnode,joyent/sdc-headnode,joyent/sdc-headnode,numericillustration/sdc-headnode,numericillustration/sdc-headnode,joyent/sdc-headnode,kaizengarden/sdc-headnode,kaizengarden/sdc-headnode,joyent/sdc-headnode,kaizengarden/sdc-headnode