code: function (program, callback) {
      var cozyLight = require('./cozy-light');
  
      applicationHelpers.resetDefaultPort();
      cozyLight.setStarted();
  
      // start app
      var app = express();
      var morgand = morgan('combined');
      if (expressLog) {
        app.use(morgand);
      }
  
      pluginHelpers.startAll(program, app, function(){
        mainAppHelper.start(app);
        applicationHelpers.startAll(function() {
  
          // always connect it after the proxy
          // https://github.com/nodejitsu/node-http-proxy/issues/180
          var jsonParser = bodyParser.json();
          var urlencodedParser = bodyParser.urlencoded({extended: false});
          app.use(urlencodedParser);
          app.use(jsonParser);
          nodeHelpers.invoke(callback, null, app, server);
        });
      });
    }
docs: Apply plugin customatisation on server. Then get all installed app
  modules. Expect that a start function is available, then run the app
  server on given port. Ports are expected to be available.
  
  @param {Object} program The command line options.
  @param {Function} callback Termination.