Developer credits
Git commits in Moodle 2.3.x by Jonathan Champ
commit 0885166fcc8457ed6049b204671dedf9ca6cbcef Author: Jonathan Champ <jonathan_champ@ncsu.edu> Date: Wed, 02 May 2012 22:23:07 +0800 Tag: v2.3.0-beta MDL-32689 Allow Blocks to decide whether they are collapsible.
commit c2539fc41d2d369d3624bd0e45849ff6a41f4066 Author: Jonathan Champ <jonathan_champ@ncsu.edu> Date: Wed, 19 Oct 2011 05:24:59 +0800 Tag: v2.3.4 MDL-29733 grade: Query for Identifying Grade Grades to Precreate is SLOW