Bug 146790 Help text/help text key for cascading parameter group is not supported
Steps to reproduce: 1.New a cascading parameter group 2.Switch to Properties, select the cascading parameter group 3.Set help text to "helpme" 4.Preview Expected result: Help text appears when hovering over the cascading parameter group name in Parameter input dialog Actual result: Help text/help text key is not supported
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/BirtViewerReportService.java
String configValue = (String) configMap.get( paramName );
					ReportParameterConverter cfgConverter = new ReportParameterConverter(
							format, Locale.US );
					paramValueObj = cfgConverter.parse( configValue,
							parameterObj.getDataType( ) );
				}
				else if ( !found )
				{
					
					paramValueObj = task.getDefaultValue( parameterObj
							.getName( ) );
				}
			}
		}
		return paramMap;
	}
	public IReportRunnable getReportRunnable( IViewerReportDesignHandle design )
			throws ReportServiceException
	{
		IReportRunnable runnable;
		if ( design.getContentType( ) == IViewerReportDesignHandle.RPT_RUNNABLE_OBJECT )
		{
			
			runnable = (IReportRunnable) design.getDesignObject( );
		}
		else
		{
			
			try