Git commits in Moodle 2.6.4 by Nobelium

commit a5a3c48851d6a5026431b9251026850dff961dd9
Author: Nobelium <me@vignesh.info>
Date:   Wed, 04 Jun 2014 22:02:46 +0800
Tag:    v2.6.4

MDL-42835 mod_scorm: Close tree nodes using TreeView API