Git commits in Moodle x.x.x by Russell Smith

commit 2f86a952d78beebf4bca7891f6ab97868e7bf0c9
Author: Russell Smith <russell.smith@catalyst-au.net>
Date:   Fri, 03 Jan 2014 11:59:11 +0800
Tag:    v2.5.4

MDL-43530 cache: Cache multiple different dirroots