Git commits in Moodle 2.8.3 by Rod Norfor

commit fc811dd468bf1243c2caad484b949aa925cfac47
Author: Rod Norfor <rod.norfor@open.ac.uk>
Date:   Thu, 22 Jan 2015 00:23:08 +0800
Tag:    v2.8.3

MDL-48914 admin: check maxuserperpage in existingroleholders->find_users