Git commits in Moodle 3.6.3 by Shamim Rezaie

commit 5226cc8a507d18682b52298fbd02e9e462bf5ed9
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Wed, 20 Feb 2019 11:54:53 +0800
Tag:    v3.6.3

MDL-64830 core_calendar: Do cap check on event edit form

commit 5848b3abf5e3d17c7f7610a28bfa49fc9dfc2f6a
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Mon, 11 Feb 2019 12:50:49 +0800
Tag:    v3.6.3

MDL-63134 mod_chat: Check if the module is visible to the user

commit 659a617729578255c80a99826f839a22a51d4984
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Mon, 11 Feb 2019 12:48:14 +0800
Tag:    v3.6.3

MDL-63134 mod_chat: Add userid param to mod_chat calendar callbacks

commit 1e2491b9eae63269cef509e184e9ed099373f17e
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Fri, 01 Feb 2019 12:44:32 +0800
Tag:    v3.6.3

MDL-63674 core_messaging: Fix message drawer's shadow in RTL

commit 9e0958bb495740026a0349d96fdeb871f969d3cb
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Fri, 01 Feb 2019 12:42:50 +0800
Tag:    v3.6.3

MDL-63674 core_messaging: Bidi text support

commit e02b7243e061b64066345d78f5025e471ffc4d0c
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Thu, 24 Jan 2019 15:14:16 +0800
Tag:    v3.6.3

MDL-52132 qbehaviour_manualgraded: no change when comment is left blank

commit 63559b47966e75adf58c0775fc4d34f38a7465ef
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Tue, 22 Jan 2019 13:48:57 +0800
Tag:    v3.6.3

MDL-43428 accessrule_timelimit: timeclose can be ealier than timelimit

commit 32636f9c2c1c736e6304718be95d6e790ca92c81
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Tue, 15 Jan 2019 15:35:15 +0800
Tag:    v3.6.3

MDL-52132 qbehaviour_manualgraded: unit test for changing comment format

commit 5428bcca6c8c76143dbd699644eb55ffd6222546
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Mon, 14 Jan 2019 15:21:41 +0800
Tag:    v3.6.3

MDL-64551 core_question: Fix double ampersand escaping in tag button

commit 0e835752a3c1cae58b006117511a467aca52994f
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Fri, 11 Jan 2019 14:24:49 +0800
Tag:    v3.6.3

MDL-64521 groups: add more unit tests