Git commits in Moodle 2.2.6 by Jerome Mouneyrac

commit 71daa4a6d678dab1822ad7d54ade02158e706641
Author: Jerome Mouneyrac <jerome@moodle.com>
Date:   Mon, 08 Oct 2012 10:58:43 +0800
Tag:    v2.2.6

MDL-35198 replace key_exists by array_key_exists

commit 55cab152a47c72331162d64db229e306aa6b4121
Author: Jerome Mouneyrac <jerome@moodle.com>
Date:   Wed, 26 Sep 2012 14:24:29 +0800
Tag:    v2.2.6

MDL-35644 user_get_details: admin should be able to see description