- Updated the managers documentation a little

- The  crystal settings calculation in hkl now tried to put omega into
  the limts by calculating a delta omega.
- TRICS data files now include HKL and the UB
- The scan module has been expanded to support user defined scans which
  run a script at any scan point.
- A small fix to the PSD code in SinqHM_srv_filler

userscan.w

@@ -0,0 +1,51 @@
+\subsection{User Scans}
+When operating with polarisation equipment a lot of things must be done
+ at each scan point: count, switch sloppy flippers, drive magnetic
+ fields, count again etc. In order to do that and other special things user
+ configurable scans have been introduced. For such scans a configurable
+ script procedure is called at each scan point with the current
+ scan point number as an argument. This script then has to perform 
+ the necessary counting operations, store the data collected, print 
+ status information and update the internal scan data structures with 
+ the collected data so that data may be plotted or analyzed in SICS. 
+
+In the following section the internal scan object is referenced as xxxscan.
+The script can contain the following commands:
+\begin{itemize}
+\item Normal SICS commands for driving magnets, counting, retrieving 
+ data etc.
+\item {\bf xxxscan line bla bla } appends everything after line to
+ the data file.
+\item {\bf xxxscan store 1 2 3 4} stores the numbers after store in the
+  count data structure of the scan module. 
+\item clientput allows to write information to the controlling terminal.
+\end{itemize}
+
+In order to do all this some configurable scan functions have to be 
+overloaded. This is implemented in userscan.c. In terms of a public
+interface only one function is defined:
+
+@d usinter @{
+	void ConfigureUserScan(pScanData self);
+@}
+
+which simply sets the necessary function pointers in pScanData.
+
+@o userscan.h @{
+/*------------------------------------------------------------------------
+   User configurable scans. At each scan point a scripted procedure is
+   called.
+
+   More info: userscan.tex
+
+   copyright: see copyright.h
+
+   Mark Koennecke, June 2001
+-------------------------------------------------------------------------*/
+#ifndef USERSCAN
+#define USERSCAN
+
+@<usinter@>
+
+#endif
+@}