Bug 7235 [Contributions] Need dispose() for action delegates
bundles/org.eclipse.jface/src/org/eclipse/jface/action/MenuManager.java
* @param newOverrides the overrides for the items of this manager
 * @since 2.0
 */
public void setOverrides(IContributionManagerOverrides newOverrides) {
	overrides = newOverrides;
	super.setOverrides(overrides);
}
/* (non-Javadoc)
 * Method declared on IContributionItem.
 */
public void setParent(IContributionManager manager) {
	parent = manager;
}
/* (non-Javadoc)
 * Method declared on IContributionItem.
 */
public void update() {
	updateMenuItem();
}
/**
 * The <code>MenuManager</code> implementation of this <code>IContributionManager</code>
 * updates this menu, but not any of its submenus.
 *
 * @see #updateAll
 */
public void update(boolean force) {
	update(force, false);
}
public void update(String property) {
	IContributionItem items[] = getItems();