fix votes example

examples/votes.html

@@ -20,7 +20,7 @@ <h2>Who would you vote for president?</h2>
         var chan = "voting-channel";
 
         // inti pubnub (PUBNUB is provided from eon.js)
-        var pb = PUBNUB.init({
+        var pb = new PubNub({
             publishKey: 'pub-c-923938f1-a4c1-4253-b15a-9c24087904c9',
             subscribeKey: 'sub-c-bd9ab0d6-6e02-11e5-8d3b-0619f8945a4f'
         });