Git commits in Moodle 3.5.9 by Jun Pataleta

commit 83bdb872dcb930028d39ad420082bbb21abeede0
Author: Jun Pataleta <jun@moodle.com>
Date:   Tue, 05 Nov 2019 16:12:26 +0800
Tag:    v3.5.9

MDL-66598 auth_oauth2: OAuth2 upgrade step


commit 39a83aa250bf04f3b2ff32754f13cb6f3ca81b5d
Author: Jun Pataleta <jun@moodle.com>
Date:   Tue, 05 Nov 2019 14:25:22 +0800
Tag:    v3.5.9

MDL-66598 auth_oauth2: Add warning messages in confirm emails


commit e70853386d74973763a5e9ecb96dba280d8c66b4
Author: Jun Pataleta <jun@moodle.com>
Date:   Wed, 30 Oct 2019 17:00:36 +0800
Tag:    v3.5.9

MDL-66598 tool_oauth2: Make account confirmation required by default


commit 2821f78e6c306f7ce4853f5cc45dc2042686fc57
Author: Jun Pataleta <jun@moodle.com>
Date:   Fri, 27 Sep 2019 11:12:16 +0800
Tag:    v3.5.9

weekly release 3.5.8+