Git merges in Moodle 3.4.8 by Andrew Nicols

commit 384c4c29db9973bfada839cd45e5ecab7f61e7e3
Author: Andrew Nicols <andrew@nicols.co.uk>
Date:   Fri, 15 Feb 2019 08:29:17 +0800
Tag:    v3.4.8

Merge branch 'install_34_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_34_STABLE

commit 0cbb46b9444ca4299bcde6850ee37679ca675d3b
Author: Andrew Nicols <andrew@nicols.co.uk>
Date:   Wed, 13 Feb 2019 10:20:13 +0800
Tag:    v3.4.8

Merge branch 'MDL-63892-34-rework' of git://github.com/mickhawkins/moodle into MOODLE_34_STABLE

commit eb3df7ecad33bfd46465afedac7294b85c654c7f
Author: Andrew Nicols <andrew@nicols.co.uk>
Date:   Mon, 11 Feb 2019 16:34:30 +0800
Tag:    v3.4.8

Merge branch 'MDL-64597-34' of git://github.com/junpataleta/moodle into MOODLE_34_STABLE