- Reworked mesure for four circle to new specifications

* reworked table
  * added psd mode
- exe now allows absolute paths
- added getRS232Timeout to rs232controller
- Fixed a couple of "guessed" return values

fourtable.h

@@ -16,6 +16,7 @@
         int HandleFourCircleCommands(int handle, SConnection *pCon, 
                 int argc, char *argv[], int *err);
         char  *GetFourCircleScanVar(int handle, double two_theta);
+        int   GetFourCircleScanNP(int handle, double two_theta);
         double GetFourCircleStep(int handle, double two_theta);
         int  SaveFourCircleTable(int handle, char *objName, FILE *fd);