- 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.

status.c

@@ -210,7 +210,7 @@
      assert(pUser);
   
      node = (pHdb)pUser;
-     v = MakeHdbText(pText[eCode]);
+     v = MakeHdbText(strdup(pText[eCode]));
      if(node != NULL && iEvent == VALUECHANGE){
          UpdateHipadabaPar(node,v,NULL);
      }