Git commits in Moodle 2.5.7 by Osanda Malith Jayathissa

commit f7b6562f20f6af4119c7775477cffbaa83229f74
Author: Osanda Malith Jayathissa <osandajayathissa@gmail.com>
Date:   Wed, 04 Jun 2014 13:55:11 +0800
Tag:    v2.5.7

MDL-45683 user: Escaping Skype ID used in profile