- Introduced a new trace facility

- Fixed performance problems in many protocol drivers.


SKIPPED:
	psi/julprot.c
	psi/phytron.c
	psi/pmacprot.c
	psi/polterwrite.c
	psi/spss7.c

hmdata.c

@@ -299,6 +299,7 @@ static int updateHMbuffer(pHistMem hist, int bank, SConnection * pCon)
                                        self->localBuffer);
     if (status == OKOK) {
       self->nextUpdate = time(NULL) + self->updateIntervall;
+      tracePar(hist->pDes->name,"!!datachange!!");
       break;
     } else {
       status = hist->pDriv->GetError(hist->pDriv, &iErr, pError, 79);