Bug 136246 [regression]Export data exported error column name.
Description: Export data exported error column name. Steps to reproduce: 1. export data in a table, select several columns. Expected result: Selected column name and data are exported. Actual result: No matter what columns you selected, exported columns name always display columns beginning from the first, and then the second, and so on.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
return engine.openReportDesign( report );
	}
	/**
	 * createGetParameterDefinitionTask.
	 * 
	 * @param runnable
	 * @return
	 */
	public IGetParameterDefinitionTask createGetParameterDefinitionTask(
			IReportRunnable runnable )
	{
		IGetParameterDefinitionTask task = null;
		try
		{
			synchronized ( this.getClass( ) )
			{
				task = engine.createGetParameterDefinitionTask( runnable );
			}
		}
		catch ( Exception e )
		{
		}
		return task;
	}
	/**
	 * Open report document from archive,
	 * 
	 * @param docName -
	 *            the name of the report document
	 * @return