Bug 204458 [Commands] Allow menu and toolbars to fire execution events
Keybindings will currently fire execution events when executing actions from the action framework. i.e. IActions with their actionDefinitionId set and IActionDelegates with the definitionId attribute in their action contributions. But it would be nice if selecting the menu or tool item would also fire the equivalent events. PW
bundles/org.eclipse.jface/src/org/eclipse/jface/action/ActionContributionItem.java
public ActionContributionItem(IAction action) {
		super(action.getId());
		this.action = action;
	}
	/**
	 * Handles a property change event on the action (forwarded by nested
	 * listener).
	 */
	private void actionPropertyChange(final PropertyChangeEvent e) {
		
		if (isVisible() && widget != null) {
			Display display = widget.getDisplay();
			if (display.getThread() == Thread.currentThread()) {
				update(e.getProperty());
			} else {
				display.asyncExec(new Runnable() {
					public void run() {
						update(e.getProperty());
					}
				});
			}
		}
	}
	/**
	 * Compares this action contribution item with another object. Two action
	 * contribution items are equal if they refer to the identical Action.
	 */
	public boolean equals(Object o) {
		if (!(o instanceof ActionContributionItem)) {
			return false;