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
prevEditorAction.dispose();
		nextPerspectiveAction.dispose();
		prevPerspectiveAction.dispose();
		activateEditorAction.dispose();
		maximizePartAction.dispose();
		workbenchEditorsAction.dispose();
		backwardHistoryAction.dispose();
		forwardHistoryAction.dispose();
		undoAction.dispose();
		redoAction.dispose();
		cutAction.dispose();
		copyAction.dispose();
		pasteAction.dispose();
		deleteAction.dispose();
		selectAllAction.dispose();
		findAction.dispose();
		printAction.dispose();
		revertAction.dispose();
		refreshAction.dispose();
		propertiesAction.dispose();
		quitAction.dispose();
		moveAction.dispose();
		renameAction.dispose();
		goIntoAction.dispose();
		backAction.dispose();
		forwardAction.dispose();
		upAction.dispose();
		nextAction.dispose();
		previousAction.dispose();
		if (categoryAction != null) {