Migrate jQuery function use for ajax in case of success or failure

Deprecation Notice:

The jqXHR.success(), jqXHR.error(), and jqXHR.complete() callbacks will be deprecated in jQuery 1.8. To prepare your code for their eventual removal, use jqXHR.done(), jqXHR.fail(), and jqXHR.always() instead.

app/assets/javascripts/editor/editor.js.erb

@@ -436,7 +436,7 @@ configureEditors: function () {
       url: $('#editor').data('errors-url')
     });
     jqxhr.always(this.hideSpinner);
-    jqxhr.success(this.renderHint);
+    jqxhr.done(this.renderHint);
   },
 
   toggleButtonStates: function () {