Code cleanup

app/Controller/User.php

@@ -2,7 +2,6 @@
 
 namespace Kanboard\Controller;
 
-use Kanboard\Model\NotificationType;
 use Kanboard\Notification\Mail as MailNotification;
 
 /**

app/Core/Session/SessionStorage.php

@@ -13,6 +13,7 @@ namespace Kanboard\Core\Session;
  * @property array  $flash
  * @property array  $csrf
  * @property array  $postAuth
+ * @property array  $filters
  * @property string $redirectAfterLogin
  * @property string $captcha
  * @property string $commentSorting

app/Core/Tool.php

@@ -39,6 +39,7 @@ class Tool
      * @access public
      * @param  Container  $container
      * @param  array      $namespaces
+     * @return Container
      */
     public static function buildDIC(Container $container, array $namespaces)
     {
@@ -50,6 +51,8 @@ class Tool
                 };
             }
         }
+
+        return $container;
     }
 
     /**