Git commits in Moodle 3.3.x by Gareth J Barnard

commit 4e2d813fb33f019da4312dc35c347626fd376e3f
Author: Gareth J Barnard <gjbarnard@gmail.com>
Date:   Wed, 27 Sep 2017 23:39:23 +0800
Tag:    v3.3.3

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