Git commits in Moodle 3.0.0 by Marc Català

commit 90faa6ae9ce90021618aa575c33ebf92b841d509
Author: Marc Català <reskit@gmail.com>
Date:   Sat, 20 Jun 2015 19:02:22 +0800
Tag:    v3.0.0-beta

MDL-50652 workshop: Workshop module allows duplicated ID number