Developer credits
Git commits in Moodle 2.3.x by Tõnis Tartes
commit 5b7e511ea8af0bb34210dcfc46235fa4df3eb90f Author: Tõnis Tartes <t6nis20@gmail.com> Date: Wed, 13 Jun 2012 15:28:07 +0800 Tag: v2.3.0-rc1 MDL-33121 Book Module: performed minor changes and cleanup for the module
commit 8c5ff185df98a1d50f6f643a4cb6f1f61509f802 Author: Tõnis Tartes <t6nis20@gmail.com> Date: Mon, 11 Jul 2011 23:52:32 +0800 Tag: v2.3.0-beta CONTRIB-3023 basic 1.x restore support for 2.x