JAVA-373: Connector does not get started in one of the constructor, so replica set thread is not activated

Author: agirbal

src/main/com/mongodb/Mongo.java

@@ -264,6 +264,7 @@ public Mongo( List<ServerAddress> replicaSetSeeds , MongoOptions options )
         _options = options;
         _applyMongoOptions();
         _connector = new DBTCPConnector( this , _addrs );
+        _connector.start();
 
         _cleaner = new DBCleanerThread();
         _cleaner.start();