Git commits in Moodle 2.9.4 by Adam Olley

commit 23c63a1afe81dc95a48afcda13f227be55fd2c20
Author: Adam Olley <adam.olley@netspot.com.au>
Date:   Fri, 27 Nov 2015 10:41:02 +0800
Tag:    v2.9.4

MDL-52334 enrol_database: Add missing filter to user_enrolment lookup