- 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/programmer/hkl.tex

@@ -24,6 +24,7 @@ $\langle$hkldat {\footnotesize ?}$\rangle\equiv$
 \mbox{}\verb@                         double fLastHKL[5];@\\
 \mbox{}\verb@                         int iNOR;@\\
 \mbox{}\verb@                         int iQuad;@\\
+\mbox{}\verb@                         int iHM;@\\
 \mbox{}\verb@                         pMotor pTheta;@\\
 \mbox{}\verb@                         pMotor pOmega;@\\
 \mbox{}\verb@                         pMotor pChi;@\\
@@ -51,6 +52,8 @@ The fields are more or less self explaining:
 or is updated automatically from a wavelength variable.
 \item[fLastHKL] the HKL of the last reflection calculated.
 \item[iNor] a flag for normal beam calculation mode.
+\item[iHM] a flag for histogram memory mode. In this mode two theta
+limits are checked  alos for detector 2 and 3.
 \item[pTheta] The two theta motor. All motor are needed for boundary
 checking.
 \item[pOmega] The omega axis motor.