- Scriptcontext debugged to be working

- Added a drivable adapter to scriptcontext nodes
- Added subsampling to simulated histograms (and as a general option) in
  order to support Gumtree testing.

SCinter.c

@@ -478,6 +478,10 @@ extern char *SkipSpace(char *pPtr);
        pCurrent = tail;
        while(pCurrent)
        {
+    	 /* the line below fixes problems with kill functions 
+    	  * traversing the command list
+    	  */ 
+    	 pCurrent->pNext = NULL; 
          if(pCurrent->KFunc)
          {
            pCurrent->KFunc(pCurrent->pData);