old_contents: var express = require('express');
  var path = require('path');
  var favicon = require('serve-favicon');
  var logger = require('morgan');
  var cookieParser = require('cookie-parser');
  var bodyParser = require('body-parser');
  
  var routes = require('./routes/index');
  var users = require('./routes/users');
  
  var app = express();
  
  // view engine setup
  app.set('views', path.join(__dirname, 'views'));
  app.set('view engine', 'ejs');
  
  // uncomment after placing your favicon in /public
  //app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
  app.use(logger('dev'));
  app.use(bodyParser.json());
  app.use(bodyParser.urlencoded({ extended: false }));
  app.use(cookieParser());
  app.use(express.static(path.join(__dirname, 'public')));
  
  app.use('/', routes);
  app.use('/users', users);
  
  // catch 404 and forward to error handler
  app.use(function(req, res, next) {
    var err = new Error('Not Found');
    err.status = 404;
    next(err);
  });
  
  // error handlers
  
  // development error handler
  // will print stacktrace
  if (app.get('env') === 'development') {
    app.use(function(err, req, res, next) {
      res.status(err.status || 500);
      res.render('error', {
        message: err.message,
        error: err
      });
    });
  }
  
  // production error handler
  // no stacktraces leaked to user
  app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
      message: err.message,
      error: {}
    });
  });
  
  
  module.exports = app;
  
new_contents: var express = require('express');
  var path = require('path');
  var favicon = require('serve-favicon');
  var logger = require('morgan');
  var cookieParser = require('cookie-parser');
  var bodyParser = require('body-parser');
  
  var routes = require('./routes/index');
  var users = require('./routes/users');
  
  var app = express();
  
  // view engine setup
  
  
  // uncomment after placing your favicon in /public
  //app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
  app.use(logger('dev'));
  app.use(bodyParser.json());
  app.use(bodyParser.urlencoded({ extended: false }));
  app.use(cookieParser());
  app.use(express.static(path.join(__dirname, 'public')));
  
  // app.use('/', routes);
  // app.use('/users', users);
  //
  // // catch 404 and forward to error handler
  // app.use(function(req, res, next) {
  //   var err = new Error('Not Found');
  //   err.status = 404;
  //   next(err);
  // });
  //
  // // error handlers
  //
  // // development error handler
  // // will print stacktrace
  // if (app.get('env') === 'development') {
  //   app.use(function(err, req, res, next) {
  //     res.status(err.status || 500);
  //     res.render('error', {
  //       message: err.message,
  //       error: err
  //     });
  //   });
  // }
  //
  // // production error handler
  // // no stacktraces leaked to user
  // app.use(function(err, req, res, next) {
  //   res.status(err.status || 500);
  //   res.render('error', {
  //     message: err.message,
  //     error: {}
  //   });
  // });
  
  
  module.exports = app;
  
subject: remove ejs