- Fixed a bug in countersec.c which prevented counting in monitor mode

- Fixes to make the second generation velocity selector driver work
- Modified obpar.c to allow parameter changes while running. This makes
  it possible to collect data at TRICS while cooling down.

scriptcontext.c

@@ -520,7 +520,7 @@ static int SctMatchNode(void *vNode, void *vData)
 }
 
 /*
- * This is the read callback for nodes particpating in the 
+ * This is the read callback for nodes participating in the 
  * scriptcontext system
  */
 static hdbCallbackReturn SctMainCallback(Hdb * node, void *userData,
@@ -967,7 +967,7 @@ void SctQueueNode(SctController * controller, Hdb * node,
   SctData *data;
   hdbCallback *cb;
 
-  if (!FindHdbCallbackData(node, controller)) {
+  if (!FindHdbCallbackData(node, controller) && strcmp(action,"read") == 0) {
     cb = MakeHipadabaCallback(SctMainCallback, controller, NULL);
     assert(cb);
     AppendHipadabaCallback(node, cb);