Git commits in Moodle 3.4.0 by Gareth J Barnard

commit 6d5f9d1218ac96b70751e36f6c110cd1dd3e15ff
Author: Gareth J Barnard <gjbarnard@gmail.com>
Date:   Wed, 27 Sep 2017 23:29:11 +0800
Tag:    v3.4.0-rc1

MDL-60250 theme_bootstrapbase: Calendar popover misplaced in RTL langs.