Git commits in Moodle 2.7.0 by Brian King

commit c484af5aa6cf50519ff8467323da7c5ed4a78acb
Author: Brian King <brian@liip.ch>
Date:   Tue, 24 Dec 2013 21:00:49 +0800
Tag:    v2.7.0-beta

MDL-43497 Language: Allow course language to be overridden