Bug 146208 ActionBarContributor Enhancement
Use MultiPageEditorActionBarContributor instead of EditorActionBarContributor to support more multi-page feature.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/extension/IExtensionConstants.java
{
	
	String EXTENSION_MULTIPAGE_EDITOR_CONTRIBUTOR = "org.eclipse.birt.report.designer.ui.editors.multiPageEditorContributor"; 
	
	String ELEMENT_FORM_PAGE = "formPage"; 
	
	
	String ATTRIBUTE_NAME = "name"; 	
	String ATTRIBUTE_TARGET_EDITOR_ID = "targetEditorId"; 
	
	String ATTRIBUTE_ID = "id"; 
	String ATTRIBUTE_DISPLAY_NAME = "displayName"; 
	String ATTRIBUTE_CLASS = "class"; 
	String ATTRIBUTE_ICON = "icon"; 
	String ATTRIBUTE_VISIBLE = "visible"; 
	String ATTRIBUTE_POSITION = "position"; 
	String ATTRIBUTE_RELATIVE = "relative"; 
	String ATTRIBUTE_PAGE_ACTION = "pageAction"; 
}