Developer credits
Git commits in Moodle 2.1.5 by Eduardo Pinto
commit 234f870c888a3889d2126b192d4f6c120208c0b0 Author: Eduardo Pinto <efgpinto@gmail.com> Date: Thu, 23 Feb 2012 13:38:54 +0800 Tag: v2.1.5 MDL-26496 Lesson Module: removed warning when no answer is selected from single choice question