Bug 145491 [deployment]BIRT_VIEWER_LOCALE in web.xml doesn't work
Description: BIRT_VIEWER_LOCALE in web.xml doesn't work Steps to reproduce: 1. Deploy birt 2. Set ko_kr to BIRT_VIEWER_LOCALE inside web.xml file 3. Start application server and preview report. Expected result: The default locale for report should be ko_kr Actual result: The report still used en_us locale to display datetime data.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
* @param request
	 *            http request
	 * @param name
	 *            parameter name
	 * @return whether report parameter exists in the url
	 */
	public static boolean isReportParameterExist( HttpServletRequest request,
			String name )
	{
		assert request != null && name != null;
		boolean isExist = false;
		Map paramMap = request.getParameterMap( );
		String ISOName = toISOString( name );
		if ( paramMap != null && paramMap.containsKey( ISOName ) )
		{
			isExist = true;
		}
		Set nullParams = getParameterValues( request, PARAM_ISNULL );
		if ( nullParams != null && nullParams.contains( name ) )
		{
			isExist = true;
		}
		return isExist;
	}
	/**
	 * If a report file name is a relative path, it is relative to working
	 * folder. So if a report file path is relative path, it's absolute path is
	 * synthesized by appending file path to the working folder path.
	 * 
	 * @param file