code: function (pluginId, bool) {
      timeline.plugins().forEach(function (element) {
        if (pluginId === element.obj.id) {
          element.enabled = bool;
        }
      });
      timeline();
    }
docs: handle the selection or deselection of a plugin in the config button
  @param  {string}  pluginId id of the HTML's checkbox element for the plugin
  @param  {boolean} bool     state of checkbox