Git commits in Moodle 2.7.4 by Amanda Doughty

commit 90cc4dcd533b9dfa1f93e04c6f3d514d450c0d14
Author: Amanda Doughty <amanda.doughty.1@city.ac.uk>
Date:   Wed, 15 Oct 2014 18:14:06 +0800
Tag:    v2.7.4

MDL-30968 mod/forum Fixed group link