Git merges in Moodle 2.3.10 by Dan Poltawski

commit 54c236dff851f148973e7c7ce35c4082dd789faf
Author: Dan Poltawski <dan@moodle.com>
Date:   Fri, 01 Nov 2013 15:47:37 +0800
Tag:    v2.3.10

Merge branch 'install_23_STABLE' of git://git.moodle.org/moodle-install into MOODLE_23_STABLE