adds missing route (fixes angular-fullstack#1614)

Author: amejiarosario

app/templates/server/routes.js

@@ -10,6 +10,7 @@ import path from 'path';
 export default function(app) {
   // Insert routes below<% if (filters.auth) { %>
   app.use('/api/users', require('./api/user'));
+  app.use('/api/things', require('./api/thing'));
 
   app.use('/auth', require('./auth'));
 <% } %>