Add initial support for grid index URLs

Yay, been wanting this for some time now.

tailbone/static/js/tailbone.js

@@ -112,6 +112,9 @@ $(function() {
     $('input[type=submit]').button();
     $('input[type=reset]').button();
 
+    /* Also automatically disable any buttons marked for that. */
+    $('a.button[disabled=disabled]').button('option', 'disabled', true);
+
     /*
      * Apply timepicker behavior to text inputs which are marked for it.
      */