Merge pull request #7 from padarom/master

Use Symfony's provided Route annotation - I've tried it

src/Controller/ContentApiController.php

@@ -2,7 +2,7 @@
 
 namespace DieSchittigs\ContaoContentApiBundle\Controller;
 
-use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+use Symfony\Component\Routing\Annotation\Route;
 use Symfony\Bundle\FrameworkBundle\Controller\Controller;
 use Symfony\Component\HttpFoundation\Response;
 use DieSchittigs\ContaoContentApiBundle\FrontendApi;