Bug 52159 [ActivityMgmt] Activity entry in window menu needs to be defined in object contribution
We should move the activity configuration menu entry to an object contribution in the IDE plug-in so that other applications do not have to have it or hack the UI.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/WorkbenchActionBuilder.java
}
	/**
	 * Creates and returns the Navigate menu.
	 */
	private MenuManager createNavigateMenu() {
		MenuManager menu = new MenuManager(IDEWorkbenchMessages.getString("Workbench.navigate"), IWorkbenchActionConstants.M_NAVIGATE); 
		menu.add(new GroupMarker(IWorkbenchActionConstants.NAV_START));
		menu.add(goIntoAction);
		MenuManager goToSubMenu = new MenuManager(IDEWorkbenchMessages.getString("Workbench.goTo"), IWorkbenchActionConstants.GO_TO); 
		menu.add(goToSubMenu);
		goToSubMenu.add(backAction);
		goToSubMenu.add(forwardAction);
		goToSubMenu.add(upAction);
		goToSubMenu.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
		menu.add(new Separator(IWorkbenchActionConstants.OPEN_EXT));
		for (int i = 2; i < 5; ++i) {
			menu.add(new Separator(IWorkbenchActionConstants.OPEN_EXT + i));
		}
		menu.add(new Separator(IWorkbenchActionConstants.SHOW_EXT));
		{
			MenuManager showInSubMenu = new MenuManager(IDEWorkbenchMessages.getString("Workbench.showIn"), "showIn"); 
			showInSubMenu.add(ContributionItemFactory.VIEWS_SHOW_IN.create(getWindow()));
			menu.add(showInSubMenu);
		}
		for (int i = 2; i < 5; ++i) {
			menu.add(new Separator(IWorkbenchActionConstants.SHOW_EXT + i));
		}
		menu.add(new Separator());
		menu.add(nextAction);
		menu.add(previousAction);