Git commits in Moodle 2.2.8 by Petr Škoda

commit 0c39b1994201858e204d3b8ff08e2c9f77f8791b
Author: Petr Škoda <commits@skodak.org>
Date:   Sat, 26 Jan 2013 18:11:48 +0800
Tag:    v2.2.8

MDL-37155 fix course sortorder to prevent problems in later unsigned migration