Git merges in Moodle 2.3.9 by Sam Hemelryk

commit 9ce818b6d712bb46cc653acd96bec9dc2a90e9a2
Author: Sam Hemelryk <sam@moodle.com>
Date:   Thu, 08 Aug 2013 12:19:55 +0800
Tag:    v2.3.9

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

commit 8dbc9cf753d4ac7df120feaba788ad3f862fa848
Author: Sam Hemelryk <sam@moodle.com>
Date:   Fri, 02 Aug 2013 04:12:00 +0800
Tag:    v2.3.9

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