Add CraueConfig for internal settings

src/Wallabag/CoreBundle/Controller/ConfigController.php

@@ -163,6 +163,7 @@ class ConfigController extends Controller
                 'username' => $user->getUsername(),
                 'token' => $config->getRssToken(),
             ),
+            'twofactor_auth' => $this->getParameter('twofactor_auth'),
         ));
     }
 

src/Wallabag/CoreBundle/Controller/StaticController.php

@@ -25,7 +25,10 @@ class StaticController extends Controller
     {
         return $this->render(
             'WallabagCoreBundle:Static:about.html.twig',
-            array()
+            array(
+                'version' => $this->getParameter('wallabag_core.version'),
+                'paypal_url' => $this->getParameter('wallabag_core.paypal_url'),
+            )
         );
     }