Update index.js

Author: rtorr

routes/index.js

@@ -3,7 +3,7 @@ var router = express.Router();
 
 router.get('/', function(req, res) {
   res.render('index', {
-    locale: 'en',
+    locale: 'en_us',
     languagesMetaData: req.app.get('languagesMetaData'),
     version: req.app.get('packageVersion')
   });