Git commits in Moodle 3.3.5 by sam marshall

commit e598dc49a7ecf8ba7fb726fa3aa754ed1f58a29d
Author: sam marshall <s.marshall@open.ac.uk>
Date:   Tue, 30 Jan 2018 01:16:06 +0800
Tag:    v3.3.5

MDL-61305 Performance: Modinfo cache can get built in parallel