Bug 123736 Underline, linethrough, overline doesn't work for chart font.
Description: Underline, linethrough, overline doesn't work for chart font. Steps to teproduce: 1. Add a style, set its font. 2. Tick "underline", "linethrough" and "overline". 3. Preview. Font setting doesn't work.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/factory/Generator.java
* 
	 * @since 2.0
	 */
	public void bindData( IDataRowExpressionEvaluator expressionEvaluator,
			IActionEvaluator iae, Chart chart, RunTimeContext rtc )
			throws ChartException
	{
		DataProcessor helper = new DataProcessor( rtc, iae );
		ResultSetWrapper wrapper = helper.mapToChartResultSet( expressionEvaluator,
				chart );
		helper.generateRuntimeSeries( chart, wrapper );
	}
	/**
	 * Since v2, it must be called before build( ), and should only be called
	 * once per design model.
	 * 
	 * @param model
	 *            Chart design model
	 * @param externalContext
	 *            External Context
	 * @param locale
	 *            Locale
	 * @return a runtime context used by build( )
	 * 
	 * @since 2.0
	 */
	public RunTimeContext prepare( Chart model,
			IExternalContext externalContext, IScriptClassLoader iscl,
			Locale locale ) throws ChartException
	{