class/class_obd.c: small OBD_ATTACHED sanity cleanup; OBD_SET_UP fix.

include/linux/lustre_net.h: set the LUSTRE_NAL back to socknal
include/linux/class_obd.h: added full license boilerplate, #define cleanup
include/linux/obd_osc: there was some confusion with obd_ost; fixed.

- added bits to structures for ost_request
- added OSC/OST portals communication
- added osc_setattr()
- added rpc_unregister_service in an attempt to get a handle on cleanup
- brought tests/ostreq.sh into the 1990s
- fixed a trivial obdctl setattr bug