Merged issue #20 fix and splash screen into development.

racevisionGame/src/main/java/visualiser/app/App.java

@@ -203,6 +203,9 @@ public class App extends Application {
         initStage.show();
     }
 
+    /**
+     * InnitCompletionHandler interface
+     */
     public interface InitCompletionHandler {
         void complete();
     }