Git commits in Moodle 2.6.9 by Zachary Durber

commit 71ab589855e6ce9fa9a30051f8efd6153284344e
Author: Zachary Durber <zdurber@gmail.com>
Date:   Mon, 05 Jan 2015 11:01:34 +0800
Tag:    v2.6.9

MDL-38466 filters: ReDoS protection for text to URL conversion.