Jump to Symfony 3.4

Thanks to the BC compatibility, almost nothing have to be changed.
All changes are related to new bundle version of:
- SensioFrameworkExtraBundle
- DoctrineFixturesBundle

src/Wallabag/CoreBundle/Controller/RssController.php

@@ -7,10 +7,10 @@ use Pagerfanta\Adapter\DoctrineORMAdapter;
 use Pagerfanta\Exception\OutOfRangeCurrentPageException;
 use Pagerfanta\Pagerfanta;
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter;
-use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
 use Symfony\Bundle\FrameworkBundle\Controller\Controller;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Annotation\Route;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 use Wallabag\CoreBundle\Entity\Tag;
 use Wallabag\UserBundle\Entity\User;