Git commits in Moodle 3.4.1 by Davo Smith

commit 03a65d89165c33377ebe3c40464b2e16680ed8a7
Author: Davo Smith <davo.smith@synergy-learning.com>
Date:   Tue, 19 Dec 2017 18:48:46 +0800
Tag:    v3.4.1

MDL-61061 formslib: make sure hideIf rules hide labels within groups

commit 5e430e98cbff8211c6bf3cb4eb203d10ab27f284
Author: Davo Smith <davo.smith@synergy-learning.com>
Date:   Tue, 19 Dec 2017 18:47:54 +0800
Tag:    v3.4.1

MDL-61061 formslib: add data-groupname to groups to fix hideIf rules

commit 8b448de4b0ae33cd4346c44384829f374a8c7e17
Author: Davo Smith <davo.smith@synergy-learning.com>
Date:   Tue, 12 Dec 2017 22:52:32 +0800
Tag:    v3.4.1

MDL-61016 form: fix handling disabledIf + hideIf with same dependency