Developer credits
Git commits in Moodle 2.6.5 by John Okely
commit 803d739f4ab5d8fc970d0c744ae602f5d9d717cd Author: John Okely <john@moodle.com> Date: Thu, 17 Jul 2014 16:42:42 +0800 Tag: v2.6.5 MDL-45339 Libraries: Add a note to docblock of get_config, set_config, and unset_config to note they are used in lib/db/upgrade.php