#801158 by casey: Fixed Dashboard adds customise dashboard link every time block is added.

modules/dashboard/dashboard.js

@@ -5,9 +5,11 @@
  * Implementation of Drupal.behaviors for dashboard.
  */
 Drupal.behaviors.dashboard = {
-  attach: function () {
-    $('#dashboard').prepend('<div class="customize"><ul class="action-links"><li><a href="#">' + Drupal.t('Customize dashboard') + '</a></li></ul><div class="canvas"></div></div>');
-    $('#dashboard .customize .action-links a').click(Drupal.behaviors.dashboard.enterCustomizeMode);
+    attach: function (context, settings) {
+    $('#dashboard', context).once(function () {
+      $(this).prepend('<div class="customize"><ul class="action-links"><li><a href="#">' + Drupal.t('Customize dashboard') + '</a></li></ul><div class="canvas"></div></div>');
+      $('.customize .action-links a', this).click(Drupal.behaviors.dashboard.enterCustomizeMode);
+    });
     Drupal.behaviors.dashboard.addPlaceholders();
     if (Drupal.settings.dashboard.launchCustomize) {
       Drupal.behaviors.dashboard.enterCustomizeMode();