added status setting in GW_RESPONSE added a default implementation for write_status in OUTPUT_STREAM (it should be moved away in the future) removed any implementation from GW_REQUEST, and put it in GW_REQUEST_IMP
added status setting in GW_RESPONSE added a default implementation for write_status in OUTPUT_STREAM (it should be moved away in the future) removed any implementation from GW_REQUEST, and put it in GW_REQUEST_IMP