Update app.js, change env to production

app.js

@@ -10,7 +10,7 @@ const fileUpload = require('express-fileupload')
 const helmet = require('helmet')
 const compression = require('compression')
 
-var env = process.env.NODE_ENV || 'testing'
+var env = process.env.NODE_ENV || 'production'
 const config = require('./config/config')[env]
 
 var app = express()