Add client sending the vote as a private variable.

DecisionSystem/vote.py

@@ -1,8 +1,10 @@
 from Messaging.packmessage import PackMessage
 
 class Vote(PackMessage):
-    def __init__(self, vote = None):
+    def __init__(self, client, vote = None):
         self._vote = vote
+        self._client = client
+        
 
     @property
     def vote(self):