initialize replicator variable

git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@704 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/storage/app.py

@@ -67,6 +67,7 @@ class Application(object):
         self.pt = None
 
         self.primary_master_node = None
+        self.replicator = None
 
         self.dm.setup(reset)
         self.loadConfiguration()