- 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

ofac.c

@@ -101,7 +101,9 @@
 #include "tclintimpl.h"
 #include "tcldrivable.h"
 #include "sicsdata.h"
+#include "help.h"
 #include "site.h"
+#include "nxupdate.h"
 /*----------------------- Server options creation -------------------------*/
   static int IFServerOption(SConnection *pCon, SicsInterp *pSics, void *pData,
                      int argc, char *argv[])
@@ -223,6 +225,7 @@
      AddCommand(pInter,"sicscron",MakeCron,NULL,NULL);
      AddCommand(pInter,"sicsdatafactory",SICSDataFactory,NULL,NULL);
      AddCommand(pInter,"scriptcallback",CallbackScript,NULL,NULL);
+     AddCommand(pInter,"help",SicsHelp,KillHelp,NULL);
 
      /* commands to do with the executor. Only StopExe carries the
         DeleteFunction in order to avoid double deletion. All the
@@ -272,6 +275,7 @@
     AddCommand(pInter,"MakeTclInt",MakeTclInt,NULL,NULL);
     AddCommand(pInter,"TclReplaceDrivable",TclReplaceDrivable,NULL,NULL);
     AddCommand(pInter,"DrivableInvoke", TclDrivableInvoke,NULL,NULL);
+    AddCommand(pInter,"UpdateFactory",UpdateFactory,NULL,NULL);
 
     /*
       install site specific commands
@@ -326,6 +330,7 @@
     RemoveCommand(pSics,"MakeGPIB");
     RemoveCommand(pSics,"MakeNXScript");
     RemoveCommand(pSics,"MakeTclInt");
+    RemoveCommand(pSics,"UpdateFactory");
 
     /*
       remove site specific installation commands