Git commits in Moodle 3.7.3 by Bas Brands

commit f5cb0ec0423f8183e476255a3f1a1d448cc2a4e8
Author: Bas Brands <bas@moodle.com>
Date:   Mon, 09 Sep 2019 18:03:06 +0800
Tag:    v3.7.3

MDL-66548 theme_classic: secure layout block position fixes


commit 4a8e6db894d971c8dc9f5a0e44a7f965f1bec9de
Author: Bas Brands <bas@moodle.com>
Date:   Wed, 21 Aug 2019 15:44:17 +0800
Tag:    v3.7.3

MDL-66450 themes: form autocomplete truncate listitems


commit 952b0caf57695496eb889034c44217d6713e3d64
Author: Bas Brands <bas@moodle.com>
Date:   Wed, 07 Aug 2019 22:17:08 +0800
Tag:    v3.7.3

MDL-56649 themes: filepicker file exists buttons spacing