ActivityMapper activityMapper = new PresenterActivityMapper((PlacePresenterFactory) GWT.create(PlacePresenterFactory.class));
ActivityManager activityManager = new ActivityManager(activityMapper, eventBus);
activityManager.setDisplay(display);
// Start PlaceHistoryHandler with our PlaceHistoryMapper
PresenterPlaceHistoryMapper historyMapper= GWT.create(PresenterPlaceHistoryMapper.class);
PlaceHistoryHandler historyHandler = new PlaceHistoryHandler(historyMapper);
historyHandler.register(placeController, eventBus, defaultPlace);
RootLayoutPanel.get().add(display);
// Goes to the place represented on URL else default place