Git commits in Moodle 3.5.5 by Shamim Rezaie

commit 816e6abb1b0a69f9e105e36c778b768d47ad5168
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Wed, 20 Feb 2019 11:54:53 +0800
Tag:    v3.5.5

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

commit b8ddf80ca6227cbe38c9866582c909ad8537d190
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Mon, 11 Feb 2019 12:50:49 +0800
Tag:    v3.5.5

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

commit d2abeb3b3c3d152e34adbc4464538ad3ac483109
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Mon, 11 Feb 2019 12:48:14 +0800
Tag:    v3.5.5

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

commit 79cbc5ca4ca00a02f429fb8f7a8bc8412bbe560f
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Thu, 31 Jan 2019 17:12:27 +0800
Tag:    v3.5.5

MDL-63674 core_messaging: Bidi text support

commit e39f0096800429dc12fc04f1d89473a087f0c1c4
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Thu, 24 Jan 2019 15:14:16 +0800
Tag:    v3.5.5

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

commit f4713ca7ec8257cb21b7678c76d60f7dce73c55c
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Tue, 22 Jan 2019 13:48:57 +0800
Tag:    v3.5.5

MDL-43428 accessrule_timelimit: timeclose can be ealier than timelimit

commit 95f2f79218b7f8cf8f6925927428ca30b80f18ab
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Tue, 15 Jan 2019 15:35:15 +0800
Tag:    v3.5.5

MDL-52132 qbehaviour_manualgraded: unit test for changing comment format

commit c9d4bb2d53a860479654f0a5148272a2b3a860c6
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Mon, 14 Jan 2019 15:21:41 +0800
Tag:    v3.5.5

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

commit 2c6d5bf004298c5cf185f5bb61df8dc80b2e4ff0
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Fri, 11 Jan 2019 14:24:49 +0800
Tag:    v3.5.5

MDL-64521 groups: add more unit tests