works with TimerService 0.2 (http://dev.legco.biz/products/timerservice)

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@5047 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/CMFActivity/ActivityTool.py

@@ -407,7 +407,7 @@ class ActivityTool (Folder, UniqueObject):
                 '/manageLoadBalancing?manage_tabs_message=' +
                 urllib.quote("Node(s) successfully deleted."))
         
-    def process_timer(self, tick, interval):
+    def process_timer(self, tick, interval, prev="", next=""):
         """ 
         Call distribute() if we are the Distributing Node and call tic()
         with our node number.