- made fixes to hkl

- Introduced a help system
- introduced a module for handling automatic updates of files during
  long measurements
- Added a circular buffer and handling facilities to varlog
- Upgraded documentation


SKIPPED:
	psi/faverage.h
	psi/nxamor.tex
	psi/pimotor.h
	psi/pimotor.tex

evcontroller.w

@@ -36,7 +36,11 @@ used by EVControl:
                                pEVDriver          pDriv;
                                EVMode             eMode;
                                float              fTarget;
+			       time_t		  start;
+			       time_t		  lastt;
                                char               *pName;
+                               char               *driverName;
+			       char               *errorScript;
                                ObPar              *pParam;
                                int                iLog;
                                pVarLog            pLog;
@@ -57,8 +61,13 @@ reached its target value.   Then there is a pointer to a callback
 interface. The fifth field is a pointer to the driver for
 the actual hardware.  Next is the mode the device is in. Of course there
 must be floating point  value which defines the current target value for the
-device. pName is a pointer to a string representing the name of the
-controller. Then there is a
+device. start and lastt are used to control the settling time.
+
+pName is a pointer to a string representing the name of the
+controller. driverName is the name of the driver used by this
+device. errorScript is the  name of a script command to run when the
+controller goes out of tolerance.
+ Then there is a
 parameter array. iLog is a boolean which says if data should be logged
  for this controller or not. pLog is the a pointer to a Varlog structure
 holding the logging information. Then there is a switch, iWarned, which is
@@ -77,6 +86,8 @@ used:
    typedef struct __EVDriver {
                              int (*SetValue)(pEVDriver self, float fNew);
                              int (*GetValue)(pEVDriver self, float *fPos);
+                             int (*GetValues)(pEVDriver self, float *fTarget,
+			          float *fPos, float *fDelta);
                              int (*Send)(pEVDriver self, char *pCommand,
                                          char *pReplyBuffer, int iReplBufLen); 
                              int (*GetError)(pEVDriver self, int *iCode,
@@ -240,6 +251,8 @@ See the documentation for commands understood.
 #define UPLIMIT   4
 #define LOWLIMIT  5
 #define SAFEVALUE 6
+#define MAXWAIT   7
+#define SETTLE    8
 
 @<evdata@>
 @}