text: var express = require('express');
  var app = express();
  app.set('port', process.env.PORT || 3000);
  
  app.use(function(err, req, res, next) {
      console.error(err.stack);
      res.type('text/plain');
      res.status(500);
      res.send('500 - Server Error');
  });
  
  app.get('/', function(req, res) {
      res.type('text/plain');
      res.send('Meadowlark Travel');
  });
  
  app.get('/about', function(req, res){
      res.type('text/plain');
      res.send('About Meadowlark Travel');
  });
  
  app.use(function (req, res) {
      res.type('text/plain');
      res.status(404);
      res.send('404 - Not Found');
  });
  
  app.listen(app.get('port'),function() {
      console.log('Express started on http://localhost: ' +
      app.get('port') + '; press Ctrl-C to terminate. ');
  });