Bug 147834 Drill through multi-page report document will only show the first page when preview in HTML/PDF
Description: When target report document has multiple pages, drill through will only show the first page. Steps to reproduce: 1. New a report with multiple pages, preview it in web viewer to create report document 2. New another report, drill through to this report document 3. Preview in HTML/PDF, only the first page of target document shows up Notes: Preview in WebViewer will get correct result
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
* @param request 
	 * 
	 * @param reportDocument
	 * @param pageNumber
	 * @param masterPage 
	 * @param svgFlag
	 * @param activeIds 
	 * @param locale 
	 * @param rtl 
	 * @return report page content
	 * @throws RemoteException
	 */
	public ByteArrayOutputStream renderReport( HttpServletRequest request,
			IReportDocument reportDocument, long pageNumber,
			boolean masterPage, boolean svgFlag, List activeIds, Locale locale,
			boolean rtl ) throws RemoteException
	{
		ByteArrayOutputStream out = new ByteArrayOutputStream( );
		renderReport( out, request, reportDocument, pageNumber, masterPage,
				svgFlag, activeIds, locale, rtl );
		return out;
	}
	/**
	 * Render report page.
	 * 
	 * @param os
	 * @param request 
	 * @param reportDocument
	 * @param pageNumber
	 * @param masterPage