disable log during tests

lib/expressapp.js

@@ -53,6 +53,8 @@ ExpressApp.start = function(opts) {
     //var accessLogStream = fs.createWriteStream(__dirname + '/access.log', {flags: 'a'})
     //app.use(morgan('combined', {stream: accessLogStream}))
     app.use(require('morgan')('dev'));
+  } else {
+    log.level = 'silent';
   }