Git commits in Moodle 2.9.1 by Mark Ward

commit fd954ad01b2f317751ab2eca9ee88d62fb0beccf
Author: Mark Ward <me@moodlemark.com>
Date:   Fri, 27 Mar 2015 00:21:00 +0800
Tag:    v2.9.1

MDL-49022 auth_ldap: trigger event when required.