Update bundle & stock file

- update stock file (AppKernel, app.php, etc ..) from SymfonyStandard edition)
- update bundle to latest release
- remove security on profiler

src/Wallabag/UserBundle/Resources/views/themes/material/Registration/register_content.html.twig

@@ -1,6 +1,6 @@
 {% trans_default_domain 'FOSUserBundle' %}
 
-<form action="{{ path('fos_user_registration_register') }}" {{ form_enctype(form) }} method="POST" class="fos_user_registration_register">
+{{ form_start(form, {'method': 'post', 'action': path('fos_user_registration_register'), 'attr': {'class': 'fos_user_registration_register'}}) }}
     <div class="card-content">
         <div class="row">