FIXes "Default Columns" toggle is broken.

With Redmine's switch from Prototype to JQuery in v2.1.0, this file needed updating.
References:
* http://www.redmine.org/issues/11445
* http://www.redmine.org/projects/redmine/repository/revisions/10068
* http://www.redmine.org/projects/redmine/repository/revisions/10068/diff/trunk/app/views/queries/_form.html.erb