Developer credits
Git commits in Moodle 2.7.3 by Jon Marthaler
commit 4fab973d4bfc5a8d7bf19f1afcb4e0f924c5e694 Author: Jon Marthaler <jmarthaler@gmail.com> Date: Wed, 19 Mar 2014 03:12:35 +0800 Tag: v2.7.3 MDL-38065 gradebook: Fix issue with hidden categories breaking rowspan.