Bug 136279 Structure and table datatypes should be hidden.
Description: Structure and table datatype should be hidden. Steps to reproduce: In table data binding, I saw structure and table two datatypes. They are not supported now, so they should be removed.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/elements/interfaces/IReportDesignModel.java
public static final String BEFORE_CLOSE_DOC_METHOD = "beforeCloseDoc"; 
	/**
	 * Name of the method called just after closing the report document file in
	 * the Factory.
	 * @deprecated
	 */
	public static final String AFTER_CLOSE_DOC_METHOD = "afterCloseDoc"; 
	/**
	 * Name of the method called before starting a presentation time action.
	 */
	public static final String BEFORE_RENDER_METHOD = "beforeRender"; 
	/**
	 * Name of the method called after starting a presentation time action.
	 */
	public static final String AFTER_RENDER_METHOD = "afterRender"; 
	
	/**
	 * Name of the data source bindings property.
	 */
	public static final String DATA_SOURCE_BINDINGS_PROP = "dataSourceBindings"; 
	
	/**
	 * Name of the property to store report design icon/thumbnail file path.
	 */
	
	public static final String ICON_FILE_PROP = "iconFile"; 
		
	/**
	 * Name of the property to store the cheet sheet file name.
	 */