QueueJobShop enhancement so that it only returns true if a receiver canAccept

dream/simulation/QueueJobShop.py

@@ -78,8 +78,8 @@ class QueueJobShop(Queue):
         #give the entity to the possible receiver that is waiting for the most time. 
         #plant does not do this in every occasion!       
         maxTimeWaiting=0
-                                                        # loop through the object in the successor list
         hasFreeReceiver=False
+        # loop through the object in the successor list
         for object in activeObject.next:
             if(object.canAccept(activeObject)):                                 # if the object can accept
                 hasFreeReceiver=True