Git commits in Moodle 3.8.x by Dmitrii Metelkin

commit f82931c169a81a8b1eabbcacc26a7e98332562e3
Author: Dmitrii Metelkin <dmitriim@catalyst-au.net>
Date:   Fri, 14 Jun 2019 07:23:11 +0800
Tag:    v3.8.0-beta

MDL-65922 core: add grade_item_updated event


commit 657cc33be935ea1360b63685ee7b024bfb5ef4a8
Author: Dmitrii Metelkin <dmitriim@catalyst-au.net>
Date:   Fri, 31 May 2019 11:21:32 +0800
Tag:    v3.8.0-beta

MDL-65622 core: add grade_item_created event


commit 2c7636490a2dbf8c114dc0d7a719c8380641e33b
Author: Dmitrii Metelkin <dmitriim@catalyst-au.net>
Date:   Tue, 28 May 2019 08:46:26 +0800
Tag:    v3.8.0-beta

MDL-65326 backup: check caps exist before assigning