Git commits in Moodle 2.0.8 by Jerome Mouneyrac

commit 2e91e1ae9d2ce75917bdad05180fe63b9dacd809
Author: Jerome Mouneyrac <jerome@moodle.com>
Date:   Fri, 27 Jan 2012 15:16:11 +0800
Tag:    v2.0.8

MDL-30878 core_user_update_users user password is reset if not specified