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
private MenuManager createHelpMenu() {
		MenuManager menu = new MenuManager(IDEWorkbenchMessages.getString("Workbench.help"), IWorkbenchActionConstants.M_HELP); 
		
		if (introAction != null)
			menu.add(introAction);
		else if (quickStartAction != null)
			menu.add(quickStartAction);
		
        
		if (tipsAndTricksAction != null)
			menu.add(tipsAndTricksAction);
		menu.add(new GroupMarker(IWorkbenchActionConstants.HELP_START));
		menu.add(new GroupMarker(IWorkbenchActionConstants.HELP_END));
		menu.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
						
		menu.add(new Separator());
		menu.add(aboutAction);
		
		/*		
		final IMutableContextActivationService contextActivationServiceA = ContextActivationServiceFactory.getMutableContextActivationService();
		contextActivationServiceA.setActiveContextIds(new HashSet(Collections.singletonList("A")));
		final IMutableContextActivationService contextActivationServiceB = ContextActivationServiceFactory.getMutableContextActivationService();
		contextActivationServiceB.setActiveContextIds(new HashSet(Collections.singletonList("B")));				
		
		menu.add(new Separator());
		
		menu.add(new Action("Add context A to the workbench") {
			public void run() {
				IWorkbench workbench = PlatformUI.getWorkbench();
				IWorkbenchContextSupport workbenchContextSupport = (IWorkbenchContextSupport) workbench.getContextSupport();