- 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

doc/user/system.htm

@@ -11,7 +11,27 @@
 <p>
  <b> resetserver </b> resets the server after an interrupt.</p>
 <p>
- <b> dir </b> a single word command which lists all objects available in the SICS system in its current configuration.</p>
+ <b> dir </b> a command which lists objects available in the SICS
+ system. Dir without any options prints a list of all objects. The
+ list can be restricted with:
+<dl>
+<dt>dir var
+<dd>prints all SICS primitive variables
+<dt>dir mot
+<dd>prints a list of all motors
+<dt>dir inter driv
+<dd> prints a list of all drivable objects. This is more then motors
+and includes virtual motors such as environment devices and wavelength
+as well.
+<dt>dir inter count
+<dd>Shows everything which can be counted upon.
+<dt>dir inter env
+<dd>Shows all currently configured environment devices.  
+<dt>dir match wildcard
+<dd>lists all objects which match the wildcard string given in
+wildcard. 
+</dl>
+</p>
 <p>
  <b> status </b> A single word command which makes SICS print its current 
 status. Possible return values can be: 
@@ -45,5 +65,12 @@ above and restores SICS to the state it was in when the status was saved with
  backup. If no file argument is given the system default file gets
  read. 
 </p>
+<p>
+<b>killfile</b> decrements the data number used for SICS file writing
+and thus consequently overwrites the last datafile. This is useful
+when useless data files have been created during tests. As this is
+critical command in normal user operations, this command requires
+managers privilege. 
+</p>
 </body>
 </html>