Git merges in Moodle 2.1.10 by Dan Poltawski

commit e5f91ef230551c7f2feadbdd52cd71fefd1d4a4e
Author: Dan Poltawski <dan@moodle.com>
Date:   Fri, 23 Nov 2012 15:16:01 +0800
Tag:    v2.1.10

Merge branch 'install_21_STABLE' of git://git.moodle.cz/moodle-install into MOODLE_21_STABLE