Git commits in Moodle 3.6.3 by David Mudrák

commit 7be07980d960ff35dc4db98c5a2476c60be511b9
Author: David Mudrák <david@moodle.com>
Date:   Fri, 01 Mar 2019 02:58:41 +0800
Tag:    v3.6.3

MDL-64943 lang: Fix regression in the test caused by the reworded string

commit d2a16b6e813059a38a35e8a55293b572364f3c12
Author: David Mudrák <david@moodle.com>
Date:   Thu, 28 Feb 2019 20:35:35 +0800
Tag:    v3.6.3

MDL-64943 lang: Fix regressions in Behat caused by reworded strings

commit 0488a0b30babe5d912357cdaf1480f6ce999b27e
Author: David Mudrák <david@moodle.com>
Date:   Mon, 18 Feb 2019 21:40:02 +0800
Tag:    v3.6.3

MDL-64862 workshop: Fix grades to pass editing

commit 6a5f60d419bbd45a5cdb5e96b882e819039447af
Author: David Mudrák <david@moodle.com>
Date:   Thu, 31 Jan 2019 19:28:52 +0800
Tag:    v3.6.3

MDL-64737 editor_atto: Fix the privacy export_user_data() implementation

commit 1ac0d67ee80d7a94d9d38137e6c29fec9b07fd51
Author: David Mudrák <david@moodle.com>
Date:   Thu, 31 Jan 2019 18:31:57 +0800
Tag:    v3.6.3

MDL-64737 privacy: Fix privacy provider testsuite file names

commit 9b90c17f74130f5ade56980eb06cae628ed59145
Author: David Mudrák <david@moodle.com>
Date:   Fri, 11 Jan 2019 18:01:46 +0800
Tag:    v3.6.3

MDL-64553 message: Add index for the notifications.useridfrom field

commit 9fb92df86766b5e5a5e4e716997aa39f85e44041
Author: David Mudrák <david@moodle.com>
Date:   Wed, 09 Jan 2019 03:03:06 +0800
Tag:    v3.6.3

MDL-64452 cache: Add tests for key prefix based on session id

commit c2922fab2705952f52af98629945b6ef186cbc0a
Author: David Mudrák <david@moodle.com>
Date:   Wed, 09 Jan 2019 02:23:59 +0800
Tag:    v3.6.3

MDL-64452 cache: Always use the current session id in the key prefix

commit 8bd88a1ecd90206a4aac427fdffc84b4ea72e41d
Author: David Mudrák <david@moodle.com>
Date:   Tue, 18 Dec 2018 04:03:58 +0800
Tag:    v3.6.3

MDL-64424 privacy: Use system context purpose on the front page, too