Developer credits
Git commits in Moodle 2.3.4 by Jason Platts
commit b44d2b689aece69c561653575fdb5877423b1724 Author: Jason Platts <j.platts@open.ac.uk> Date: Tue, 23 Oct 2012 16:50:23 +0800 Tag: v2.3.4 MDL-34530 Calendar: Can create an event for any group, but cannot view it