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
}
	/**
	 * Gets the design icon/thumbnail file path.
	 * 
	 * @return the design icon/thumbnail file path
	 */
	public String getIconFile( )
	{
		return getStringProperty( ReportDesign.ICON_FILE_PROP );
	}
	/**
	 * Sets the design cheat sheet file path.
	 * 
	 * @param cheatSheet
	 *            the design cheat sheet file path to set
	 * @throws SemanticException
	 *             if the property is locked or not defined on this design.
	 * 
	 * @deprecated by {@link #setCheatSheet(String)}
	 */
	public void setCheetSheet( String cheatSheet ) throws SemanticException
	{
		setCheatSheet( cheatSheet );
	}
	/**
	 * Sets the design cheat sheet file path.
	 * 
	 * @param cheatSheet
	 *            the design cheat sheet file path to set
	 * @throws SemanticException