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/RaceFinishController.java

@@ -10,7 +10,7 @@ import visualiser.model.VisualiserBoat;
 /**
  * Finish Screen for when the race finishes.
  */
-public class RaceFinishController extends Controller2 {
+public class RaceFinishController extends Controller {
     private @FXML TableView<VisualiserBoat> boatInfoTable;
     private @FXML TableColumn<VisualiserBoat, String> boatRankColumn;
     private @FXML TableColumn<VisualiserBoat, String> boatNameColumn;