Re-adds screen clearing

frontend/core/src/com/gameware/game/GameWare.java

@@ -89,6 +89,9 @@ public class GameWare extends ApplicationAdapter {
 
 	@Override
 	public void render () {
+//      Clearing the screen
+	    Gdx.gl.glClearColor(1, 1, 1, 1);
+		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
 //		Delegates to GameStateManager
 		gsm.update(Gdx.graphics.getDeltaTime());
 		gsm.render(batch);