Git commits in Moodle 3.9.5 by Ilya Tregubov

commit b0679c110391836932ecde3c51934fd596cbbc89
Author: Ilya Tregubov <ilya@moodle.com>
Date:   Thu, 04 Mar 2021 18:45:06 +0800
Tag:    v3.9.5

MDL-69680 lib: Fix behat test backup_and_restore.feature

commit ff431a76cd4cb5aabeb68684341d55f3c9921f17
Author: Ilya Tregubov <ilya@moodle.com>
Date:   Tue, 02 Mar 2021 21:59:43 +0800
Tag:    v3.9.5

MDL-70767 feedback: Prevent xss in feedback answer text.

commit 472fdf06038cf994d5455cdb1e309260fdef64e2
Author: Ilya Tregubov <ilya@moodle.com>
Date:   Tue, 16 Feb 2021 15:31:41 +0800
Tag:    v3.9.5

MDL-69680 lib: Replace deprecated jQuery functions

commit a5edc8cb89f10bf8f0abe3c059db405a69791f48
Author: Ilya Tregubov <ilya@moodle.com>
Date:   Fri, 12 Feb 2021 15:39:18 +0800
Tag:    v3.9.5

MDL-69680 lib: Update jQuery version in Moodle files

commit c2cddf3c25327ca22827478aa19e8ea0197e13aa
Author: Ilya Tregubov <ilya@moodle.com>
Date:   Fri, 12 Feb 2021 15:29:08 +0800
Tag:    v3.9.5

MDL-69680 lib: Upgrade jQuery lib to 3.5.1

commit a0ec66dc6bb24da2525e917d7ea2cecbe2164422
Author: Ilya Tregubov <ilya@moodle.com>
Date:   Tue, 26 Jan 2021 20:21:33 +0800
Tag:    v3.9.5

MDL-70676 workshop: Allow empty grades.

commit 8d4930ab111fa18c489e4ea294df2cbd0741ec84
Author: Ilya Tregubov <ilya@moodle.com>
Date:   Wed, 13 Jan 2021 15:38:45 +0800
Tag:    v3.9.5

MDL-70552 core_message: Show popup for teachers when anonymous

commit 1ca2e36ecf09368f601962258496b6541484d614
Author: Ilya Tregubov <ilya@moodle.com>
Date:   Tue, 12 Jan 2021 17:21:30 +0800
Tag:    v3.9.5

MDL-70528 h5pactivity: Fix block can't be added to h5pactivity page.