Git commits in Moodle 2.6.4 by Osanda Malith Jayathissa

commit 739d227c58886e9a1be1426ed66053f1d37ee9a9
Author: Osanda Malith Jayathissa <osandajayathissa@gmail.com>
Date:   Wed, 04 Jun 2014 13:55:11 +0800
Tag:    v2.6.4

MDL-45683 user: Escaping Skype ID used in profile