Language selection on config screen

app/config/config.yml

@@ -25,6 +25,11 @@ framework:
     fragments:       ~
     http_method_override: true
 
+wallabag_core:
+    languages:
+        en: 'English'
+        fr: 'Français'
+
 # Twig Configuration
 twig:
     debug:            "%kernel.debug%"

app/config/services.yml

@@ -18,3 +18,15 @@ services:
         public: false
         tags:
             - { name: twig.extension }
+
+    wallabag.locale_listener:
+        class: Wallabag\CoreBundle\EventListener\LocaleListener
+        arguments: ["%kernel.default_locale%"]
+        tags:
+            - { name: kernel.event_subscriber }
+
+    wallabag.user_locale_listener:
+        class: Wallabag\CoreBundle\EventListener\UserLocaleListener
+        arguments: ["@session"]
+        tags:
+            - { name: kernel.event_listener, event: security.interactive_login, method: onInteractiveLogin }