Developer credits
Git commits in Moodle 2.0.0 by garethmorgan
commit 693838d37c644d02b60fb3c9d390234415daecb1 Author: garethmorgan <garethmorgan> Date: Tue, 11 Mar 2008 04:05:12 +0900 Tag: v2.0.0-rc1 Populating $overridableroles and $assignableroles to make the roles tabs accessible. MDL-13803.