Basic Express Server Set Up
var express = require('express');
var bodyParser = require('body-parser');
var methodOverride = require('method-override');
var exphbs = require('express-handlebars');
var app = express();
var port = process.env.PORT || 8080;
app.use(bodyParser.urlencoded({extended: false}));
app.use(methodOverride('_method'));
app.engine('handlebars', exphbs({defaultLayout: 'main'}));
app.set('view engine', 'handlebars');
var routes = require("./controllers/burgers_controller.js");
app.use("/", routes);
app.listen(port);