Git commits in Moodle 3.0.4 by Gareth J Barnard

commit a4001824d91afbcdd7a2d603598762d5d8786486
Author: Gareth J Barnard <gjbarnard@gmail.com>
Date:   Wed, 13 Apr 2016 19:56:13 +0800
Tag:    v3.0.4

MDL-53033 themes: Invalid attribute values for div.c1.btn.