Make ActhonActivableClass cleaner and safer (handles its own refcount)

Cython/Utility/CyObjects.cpp

@@ -112,9 +112,16 @@
     };
 
     struct ActhonActivableClass : public CyObject {
-      ActhonResultInterface *(*_active_result_class)(void);
       ActhonQueueInterface *_active_queue_class = NULL;
-      virtual ~ActhonActivableClass() {}
+      ActhonResultInterface *(*_active_result_class)(void);
+      ActhonActivableClass(){} // Used in Activated classes inheritance chain (base Activated calls this, derived calls the 2 args version below)
+      ActhonActivableClass(ActhonQueueInterface * queue_object, ActhonResultInterface *(*result_constructor)(void))
+      : _active_queue_class(queue_object), _active_result_class(result_constructor) {
+        Cy_INCREF(this->_active_queue_class);
+      }
+      virtual ~ActhonActivableClass() {
+        Cy_XDECREF(this->_active_queue_class);
+      }
     };
 
     static inline int _Cy_DECREF(CyObject *op) {