Added preliminary meta-button

Change-Id: I517bd12a7f9ec1ba6e13d856e7ea07685afe7673
diff --git a/dev/js/src/loc/de.js b/dev/js/src/loc/de.js
index ab443f4..0b57409 100644
--- a/dev/js/src/loc/de.js
+++ b/dev/js/src/loc/de.js
@@ -31,4 +31,5 @@
 
   loc.TOGGLE_ALIGN = 'tausche Textausrichtung';
   loc.SHOW_KQ      = 'zeige KoralQuery';
+  loc.SHOW_META    = 'zeige Metadaten';
 });