Bug 143671 [Linux-As][Smoke]Parameter can't be used.
Details: [Linux-As]Parameter can't be used. Setp: 1.New a report design. 2.New a paremeter. 3.Preview and click Run Report Parameter. 4.Dialog pop up and press OK. Actual resutl: Report error.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
case '`' :
					sbHtmlEncoded.append( "&#96;" ); 
					break;
				case '&' :
					sbHtmlEncoded.append( "&#38;" ); 
					break;
				default :
					sbHtmlEncoded.append( c );
			}
		}
		sHtmlEncoded = sbHtmlEncoded.toString( );
		return sHtmlEncoded;
	}
	/**
	 * Initial the parameters class. Web.xml is in UTF-8 format. No need to do
	 * encoding convertion.
	 * 
	 * @param config
	 *            Servlet configuration
	 */
	public synchronized static void initParameters( ServletConfig config )
	{
		
		ServletContext context = config.getServletContext( );
		workingFolder = context.getInitParameter( INIT_PARAM_REPORT_DIR );
		if ( workingFolder == null || workingFolder.trim( ).length( ) <= 0 )
		{
			
			workingFolder = context.getRealPath( "/" ); 
		}