Git commits in Moodle 2.2.5 by sam marshall

commit eaead2aea85c90a18e4977101f06a673b3d4929c
Author: sam marshall <s.marshall@open.ac.uk>
Date:   Fri, 17 Aug 2012 17:39:38 +0800
Tag:    v2.2.5

MDL-31957 Course reset: Does not erase activity completion data