Changes to code to use new controller structure.

- renamed javadoc referencing old controllers
- keybindings no longer need to be static
- finished lobby and lobbyhost controllers

#story[1261]

racevisionGame/src/main/java/visualiser/Controllers/NotificationController.java

@@ -9,7 +9,7 @@ import javafx.stage.Stage;
 /**
  * Controller for a popup notification regarding user activity.
  */
-public class NotificationController {
+public class NotificationController extends Controller{
     private @FXML Label lblDescription;
     private @FXML Text txtMessage;