added index and fixed vote button in infinite scroll

src/database/mongo.js

@@ -90,6 +90,12 @@
 					}
 				});
 
+				db.collection('objects').ensureIndex({_key :1, score: 1}, {background:true}, function(err) {
+					if(err) {
+						winston.error('Error creating index ' + err.message);
+					}
+				});
+
 				db.collection('objects').ensureIndex({_key :1, value: -1}, {background:true}, function(err) {
 					if(err) {
 						winston.error('Error creating index ' + err.message);

src/socket.io/topics.js

@@ -456,6 +456,9 @@ SocketTopics.loadMore = function(socket, data, callback) {
 			},
 			'reputation:disabled': function(next) {
 				next(null, parseInt(meta.config['reputation:disabled'], 10) === 1);
+			},
+			'downvote:disabled': function(next) {
+				next(null, parseInt(meta.config['downvote:disabled'], 10) === 1);
 			}
 		}, callback);
 	});