add autodetection of languages

vagrant/bootstrap.sh

@@ -67,7 +67,14 @@ languages:
     - fr
     - it
     - de
-    - ru" >> "${YAML}"
+    - ru
+  include_default_lang: true
+  pages_fallback_only: false
+  translations: true
+  translations_fallback: true
+  session_store_active: true
+  http_accept_language: true
+  override_locale: false" >> "${YAML}"
 fi
 
 sudo -u "${WWW_USER}" ex -s -c "4i|  alias: '/home'" -c x "${YAML}"