Bug 192789 Support to render reportlet using bookmark in frameset servlet.
Description: Support to render reportlet using bookmark in frameset servlet. At present, only run and preview servlet support __isreportlet&__bookmark to generate reportlet.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/BirtViewerReportService.java
{
			
			try
			{
				task = getParameterDefinitionTask( design.getFileName( ),
						options );
			}
			catch ( EngineException e )
			{
				throw new ReportServiceException( e.getLocalizedMessage( ), e
						.getCause( ) );
			}
		}
		
		if ( task != null )
		{
			HttpServletRequest request = (HttpServletRequest) options
					.getOption( InputOptions.OPT_REQUEST );
			HashMap context = new HashMap( );
			context.put(
					EngineConstants.APPCONTEXT_BIRT_VIEWER_HTTPSERVET_REQUEST,
					request );
			task.setAppContext( context );
		}
		return task;
	}
	/**
	 * @see org.eclipse.birt.report.service.api.IViewerReportService#getPageNumberByBookmark(java.lang.String,
	 *      java.lang.String, org.eclipse.birt.report.service.api.InputOptions)
	 */