Merge pull request #2333 from matmair/multiple-admin-btn

allow admin buttons to be assigned by class

InvenTree/InvenTree/static/script/inventree/inventree.js

@@ -208,7 +208,7 @@ function inventreeDocReady() {
     });
 
     // Callback for "admin view" button
-    $('#admin-button').click(function() {
+    $('#admin-button, .admin-button').click(function() {
         var url = $(this).attr('url');
 
         location.href = url;