Developer credits
Git commits in Moodle 2.2.x by Huy Hoang
commit a8f5d3814d7e413881c2a9a1089ed150c78c08af Author: Huy Hoang <hoang027@umn.edu> Date: Thu, 01 Nov 2012 17:14:45 +0800 Tag: v2.2.7 MDL-34695 Wiki Module: add prevention to create new record when userid is 0