Second cleanup of rmcd and smc code

mediachanger/castorrmc/h/rmc.h

mediachanger/castorrmc/h/rmc_api.h

mediachanger/castorrmc/h/rmc_smcsubr.h

mediachanger/castorrmc/h/rmc_smcsubr2.h

mediachanger/castorrmc/h/smc_constants.h

mediachanger/castorrmc/h/smc_struct.h

mediachanger/castorrmc/rmc/Imakefile

mediachanger/castorrmc/rmc/rmc_procreq.c

mediachanger/castorrmc/rmc/rmc_serv.c

mediachanger/castorrmc/rmc/rmclogit.c

mediachanger/castorrmc/rmc/smc.c

mediachanger/castorrmc/rmc/smcsubr.c

mediachanger/castorrmc/rmc/smcsubr2.c

mediachanger/castorrmc/rmc/usrmsg.c