bug fixes and enhancements related to evcontroller

SKIPPED:
	psi/dilludriv.c
	psi/el755driv.c
	psi/eurodriv.c
	psi/eve.c
	psi/eve.h
	psi/fsm.c
	psi/ipsdriv.c
	psi/itc4driv.c
	psi/itcdriv.c
	psi/lcdriv.c
	psi/logger.c
	psi/logger.h
	psi/slsmagnet.c

evcontroller.tex

@@ -112,6 +112,7 @@ $\langle$evdriv {\footnotesize ?}$\rangle\equiv$
 \mbox{}\verb@                             int (*GetError)(pEVDriver self, int *iCode,@\\
 \mbox{}\verb@                                             char *pError, int iErrLen);@\\
 \mbox{}\verb@                             int (*TryFixIt)(pEVDriver self, int iCode);@\\
+\mbox{}\verb@                             int (*SavePars)(pEVDriver self, FILE *fil);@\\
 \mbox{}\verb@                             int (*Init)(pEVDriver self);@\\
 \mbox{}\verb@                             int (*Close)(pEVDriver self);@\\
 \mbox{}\verb@                             void *pPrivate;@\\
@@ -154,6 +155,7 @@ the problem. If so, the apropriate actions are performed. TryFixIt returns
 either DEVOK, if the device is OK, DEVFAULT, if TryFixIt cannot fix the
 problem and DEVREDO if TryFixIt manged to fix the problem but requires the
 last command to be resent.
+\item [SavePars] Saves persistent parameters to status file.
 \item [Init] Init is meant to initialise or reinitialise the driver.
 \item [Close] Close is meant to close the driver and bring the device into a
 safe state.
@@ -181,7 +183,6 @@ $\langle$dvfunc {\footnotesize ?}$\rangle\equiv$
 \mbox{}\verb@  void       DeleteEVController(void *pData);@\\
 \mbox{}\verb@  pEVControl MakeEVController(pEVDriver pDriv, SConnection *pCon,@\\
 \mbox{}\verb@                              ObjectFunc wrapper, int argc, char *argv[]);@\\
-\mbox{}\verb@  int EVSaveStatus(void *pData, char *name, FILE *fil);@\\
 \mbox{}\verb@/*-------------------------- driving  ---------------------------------*/@\\
 \mbox{}\verb@  int EVCDrive(pEVControl self,SConnection *pCon, float fNew);@\\
 \mbox{}\verb@  int EVCGetPos(pEVControl self, SConnection *pCon,float *fVal);@\\