removed express from app.js

lib/express.js

@@ -0,0 +1,42 @@
+var express = require('express');
+var app = express();
+var path = require('path');
+var bodyParser = require('body-parser');
+
+// view engine setup
+app.set('views', path.join(__dirname, '../src/views'));
+app.set('view engine', 'jade');
+app.use(bodyParser.json());
+app.use(bodyParser.urlencoded({ extended: false }));
+app.use(express.static(path.join(__dirname, '../dist')));
+
+app.get('/', function(req, res) {
+  res.render('index');
+});
+
+// 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
+app.use(function(err, req, res, next) {
+	res.status(err.status || 500);
+	res.render('error', {
+		message: err.message,
+		error: err
+	});
+});
+
+// production error handler
+app.use(function(err, req, res, next) {
+	res.status(err.status || 500);
+	res.render('error', {
+		message: err.message,
+		error: {}
+	});
+});
+
+module.exports = app;