Git merges in Moodle 2.7.9 by Dan Poltawski

commit 76cd16e6e48f7101bb1614da2c572e995b3921e6
Author: Dan Poltawski <dan@moodle.com>
Date:   Thu, 18 Jun 2015 23:11:41 +0800
Tag:    v2.7.9

Merge branch 'install_27_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_27_STABLE

commit 67ac2b0cee23103cb9d410ca72e52b74eef43ddc
Author: Dan Poltawski <dan@moodle.com>
Date:   Mon, 18 May 2015 20:05:02 +0800
Tag:    v2.7.9

Merge branch 'MDL-50177_27' of git://github.com/dmonllao/moodle into MOODLE_27_STABLE