Git commits in Moodle 3.7.0 by Neill Magill

commit 1b43c8498099d862a8c76c46c496fbd4dad9a978
Author: Neill Magill <neill.magill@nottingham.ac.uk>
Date:   Thu, 09 Aug 2018 17:28:21 +0800
Tag:    v3.7.0-beta

MDL-63103 filebrowser: Speed up finding activities with files