Git commits in Moodle 2.4.x by Tony Butler

commit a4720e016e8f9bbb1c860acfd49ed44eb059df04
Author: Tony Butler <tonyjbutler@gmail.com>
Date:   Fri, 13 Dec 2013 23:03:27 +0800
Tag:    v2.4.8

MDL-43373 core_enrol: Display enrolments dimmed if outside of start or end times