Developer credits
Git commits in Moodle 3.4.x by Thinh Pham
commit 3fef39fc6846d90c2267c224742ac49ea1d7629d Author: Thinh Pham <thinh.phamtien@nashtechglobal.com> Date: Tue, 19 Dec 2017 19:11:12 +0800 Tag: v3.4.1 MDL-60079 User tours: leave unnecessary aria tags in the page