set up session in server.js

server.js

@@ -1,7 +1,14 @@
 var express = require('express');
+var session = require('express-session');
 var app = express();
 var PORT = process.env.PORT || 3000;
 
+app.use(session({
+	secret: "seakrett",
+	resave: false,
+	saveUninitialized: false
+}));
+
 app.use(express.static('public'));
 
 var runsController = require('./controllers/runs.js');