Git commits in Moodle 3.6.4 by Adrian Greeve

commit 25f240bd6ffd72874918dfa458592e3f5e0b136c
Author: Adrian Greeve <abgreeve@gmail.com>
Date:   Fri, 12 Apr 2019 11:01:20 +0800
Tag:    v3.6.4

MDL-62974 mod_lesson: Minor update to html class.


commit 949282574a84a0c5bd7e7c8d7ddfbfa419ee5bba
Author: Adrian Greeve <abgreeve@gmail.com>
Date:   Fri, 08 Mar 2019 14:32:24 +0800
Tag:    v3.6.4

MDL-64987 repository_nextcloud: Remove duplicate string.