Release 3.8.0.4 for Moodle 3.8: v20200929

Release 3.8.0.4 for Moodle 3.8.x.

NOTE: the release contains major changes in Teams SSO, and require action if Moodle and Teams integration is used. Details are at https://docs.moodle.org/38/en/Office365#3.8.0.4_and_3.9.1_release

NOTE: the release also contains a major change on how Teams owners and members are determined. Two new capabilities are introduced for owners and members respectively. The default setting matches the current situation, with editingteacher role having owner capability, and student role having member capability, but this can be customised.

The following changes were made in this release:

• Improved Moodle and Teams SSO integration (#1319). Note: action is required, see link above.
• Use capability determine Teams owners and members (#1235).
• Log out user from Office 365 when they log out from Moodle (#1113). Configuration required, see https://docs.moodle.org/38/en/Office365#3.8.0.4_and_3.9.1_release.
• Use application access to call assign users API (#1324).
• Bug fix in handling users with numeric usernames in sync user task (#1338).
• Bug fix in handling users with uppercase username in sync user task (#1356).
• Fix broken Teams link and icon on settings page (#1302) (Thanks to @jamaur).