Merge pull request #7301 from owncloud/fix-fuckup

fix master - #7274 brokes it

lib/private/appframework/middleware/middlewaredispatcher.php

@@ -26,6 +26,7 @@ namespace OC\AppFramework\Middleware;
 
 use OCP\AppFramework\Controller;
 use OCP\AppFramework\Http\Response;
+use OCP\AppFramework\MiddleWare;
 
 /**
  * This class is used to store and run all the middleware in correct order