- 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

pimotor.tex

@@ -50,6 +50,7 @@ $\langle$pimoti {\footnotesize ?}$\rangle\equiv$
 \mbox{}\verb@----------------------------------------------------------------------------*/@\\
 \mbox{}\verb@#ifndef PIMOTOR@\\
 \mbox{}\verb@#define PIMOTOR@\\
+\mbox{}\verb@#include <motor.h>@\\
 \mbox{}\verb@@$\langle$pimoti {\footnotesize ?}$\rangle$\verb@@\\
 \mbox{}\verb@#endif@\\
 \mbox{}\verb@@\\