Bug 146208 ActionBarContributor Enhancement
Use MultiPageEditorActionBarContributor instead of EditorActionBarContributor to support more multi-page feature.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/DesignerActionBarContributor.java
/**
	 * Creates the page menu
	 * 
	 * @return the page menu
	 */
	protected IMenuManager createPageMenu( )
	{
		MenuManager newMenu = new MenuManager( Messages.getString( "DesignerActionBarContributor.menu.page" ), "birtPage" ); 
		newMenu.add( new Separator( PAGE_SET_GROUP ) );
		newMenu.add( new Separator( PAGE_SET_GROUP_END ) );
		newMenu.add( new Separator( ) );
		return newMenu;
	}
	private void contributeStyleMenu( MenuManager newMenu )
	{
		
		newMenu.add( getAction( ImportCSSStyleAction.ID ) );
		newMenu.add( getAction( AddStyleAction.ID ) );
		
		MenuManager editStyleMenu = new MenuManager( Messages.getString( "DesignerActionBarContributor.menu.style-rule-edit" ) ); 
		editStyleMenu.add( NoneAction.getInstance( ) );
		editStyleMenu.addMenuListener( new IMenuListener( ) {
			public void menuAboutToShow( IMenuManager manager )
			{
				updateDynamicItems( EditStyleMenuAction.ID, manager );
			}
		} );
		newMenu.add( editStyleMenu );
		
		MenuManager applyStyleMenu = new MenuManager( Messages.getString( "DesignerActionBarContributor.menu.style-rule-apply" ) );