Git commits in Moodle 2.7.1 by James Pratt

commit bc3c2a8eed41b8d06f5d706624191e967448e01d
Author: James Pratt <me@jamiep.org>
Date:   Thu, 22 May 2014 13:10:07 +0800
Tag:    v2.7.1

MDL-42526 mod_assignment : fix record insert with assigment.id 0