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/api/ReportDesignHandle.java
return ""; 
	}
	/**
	 * Returns the script called at the end of the Factory after closing the
	 * report document (if any). This is the last method called in the Factory.
	 * 
	 * @return the script
	 */
	public String getAfterFactory( )
	{
		return getStringProperty( AFTER_FACTORY_METHOD );
	}
	/**
	 * Returns the script called just after opening the report document in the
	 * Factory.
	 * 
	 * @return the script
	 * @deprecated
	 */
	public String getAfterOpenDoc( )
	{
		return ""; 
	}
	/**
	 * Returns the script called after starting a presentation time action.
	 * 
	 * @return the script
	 */
	public String getAfterRender( )
	{