Git commits in Moodle 3.11.1 by Jun Pataleta

commit 335e628e2772828edd0cad045b2e5f75336f2e9c
Author: Jun Pataleta <jun@moodle.com>
Date:   Tue, 01 Jun 2021 12:50:24 +0800
Tag:    v3.11.1

MDL-71669 atto_table: Set appropriate ARIA roles for table button

commit 2874db9bd516276d939178313547328cc882528d
Author: Jun Pataleta <jun@moodle.com>
Date:   Tue, 01 Jun 2021 12:46:18 +0800
Tag:    v3.11.1

MDL-71669 editor_atto: Fire custom event when toggling button highlight

commit 408a698eef89f882b60172ff7fbaa47401f39806
Author: Jun Pataleta <jun@moodle.com>
Date:   Tue, 01 Jun 2021 12:44:36 +0800
Tag:    v3.11.1

MDL-71669 editor_atto: Create an events module for the atto editor

commit c4b00efba14f78d6d32cae02b4c43a013f206e4e
Author: Jun Pataleta <jun@moodle.com>
Date:   Tue, 01 Jun 2021 12:04:12 +0800
Tag:    v3.11.1

MDL-71669 editor_atto: Set proper roles to toolbar menus