Developer credits
Git commits in Moodle 3.2.2 by Mark Nelson
commit fd13953a8a97950825f315197764257df3ba6a41 Author: Mark Nelson <markn@moodle.com> Date: Mon, 20 Feb 2017 12:37:09 +0800 Tag: v3.2.2 MDL-58014 core_message: fixed unread message count
commit bac13609ca579499cc90249b84da7c274fe1c57c Author: Mark Nelson <markn@moodle.com> Date: Thu, 16 Feb 2017 12:54:36 +0800 Tag: v3.2.2 MDL-57967 core_message: do not process conversations from deleted users