static void setupLog4Net()
{
var fs = new FileSystem();
var configFolder = fs.SearchUpForDirectory(System.Environment.CurrentDirectory, "config") ?? ".";
var log4NetFilePath = configFolder.AppendPath("log4net.config");
Console.WriteLine("Using '{0}' for log4net.config", log4NetFilePath);
log4net.Config.XmlConfigurator.ConfigureAndWatch(new FileInfo(log4NetFilePath));
}