Stand 2019-02-28.

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

frontend/es/listen.json

@@ -72,6 +72,15 @@
         "time_filter_end": "Time filter (end)",
         "include_indirect_links": "Also display indirect links to places",
         "include_direct_links": "Restrict to direct links only",
-        "hide_biographical_markers": "Hide biographical markers"
+        "hide_biographical_markers": "Hide biographical markers",
+        "overview": "Overview",
+        "hierarchy": "Hierarchy",
+        "norm_data": "Norm data",
+        "generic": "Generic",
+        "partitive": "Partitive",
+        "instantial": "Instancial",
+        "read_more": "Read more",
+        "bibliography": "Bibliography",
+        "genealogy": "Genealogy"
     }
 }