Git commits in Moodle 2.6.2 by Brent Boghosian

commit e7fa4cde7be9b68dc1d1066c0a42bfbdff9ce3c6
Author: Brent Boghosian <brent.boghosian@remote-learner.net>
Date:   Wed, 15 Jan 2014 00:17:09 +0800
Tag:    v2.6.2

MDL-43635: Further support custom contexts: reading from config DB table and reset method for after plugin install Add PHPUnit test for custom context changes