Developer credits
Git commits in Moodle x.x.x by Alex Walker
commit f14afd29365a0d14bda08a9acdb880257ecd092f Author: Alex Walker <alex.walker@glasgow.ac.uk> Date: Wed, 01 Jun 2016 22:21:41 +0800 Tag: v3.7.0-beta MDL-49673 mod_assign: option to hide grader