- allow scriptcontext objects to be dynamic

- enhancements in scriptcontext (error messages stored as properties)

hipadaba.c

@@ -86,6 +86,7 @@ void DeleteCallbackChain(pHdb node)
   InvokeCallbackChain(node, &killNodeMsg);
 
   current = node->callBackChain;
+  node->callBackChain = NULL;
   while (current != NULL) {
     if (current->killFunc != NULL) {
       current->killFunc(current->userData);