Fix for D. Key Editor links no longer appearing on all D. Key admin p…

…ages. (see #679)

It was only appearing on the main D. Key Admin page, not
all of the sub-pages as seen in Production.

gobotany/static/admin/admin_gb.js

@@ -1,7 +1,8 @@
 // Go Botany Admin: customizations
 
-// Django assigns jQuery's $ to django.jQuery
-django.jQuery(document).ready(function () {
+// Django assigns jQuery's $ to django.jQuery, but in some cases
+// it's not ready right away, so use a non-jQuery way to start.
+document.addEventListener("DOMContentLoaded", function (event) {
 
     // Pagination: Go To Page customization (see pagination.html):
 
@@ -39,5 +40,4 @@ django.jQuery(document).ready(function () {
             django.jQuery('#id_state').focus();
         }
     }
-});
-
+});