Revert route load removal.

I was wrong this code is still required.

Author: markstory

config/bootstrap.php

@@ -11,6 +11,7 @@
  * @license       http://www.opensource.org/licenses/mit-license.php MIT License
  */
 use Cake\Core\Configure;
+use Cake\Core\Plugin as CorePlugin;
 use Cake\Datasource\ConnectionManager;
 use Cake\Event\EventManager;
 use Cake\Log\Log;
@@ -63,6 +64,10 @@ function ($code, $message, $file, $line, $context = null) use (&$previousHandler
     ]);
 }
 
+if (!CorePlugin::getCollection()->get('DebugKit')->isEnabled('routes')) {
+    include dirname(__FILE__) . DIRECTORY_SEPARATOR . 'routes.php';
+}
+
 $appClass = Configure::read('App.namespace') . '\Application';
 if (class_exists($appClass)) {
     EventManager::instance()->on('Server.buildMiddleware', function ($event, $queue) use ($service) {