Stand 2019-02-28.

Noteworthy:
 - Navigation now saws institution rather than museum in non-German
   languages
 - Major progress in the arabic translation

frontend/pl/images.json

@@ -12,6 +12,7 @@
         "image_all": "Wszystkie obrazy",
         "image_pdf": "Plik PDF z obraz\u00f3w",
         "image_photo": "Fotografia",
-        "resource": "Resource"
+        "resource": "Resource",
+        "media_page_for_object": "Media page for object"
     }
 }