Git commits in Moodle 2.8.6 by Salih Gedik

commit d7f66ebe0738d9c8958a88f75c2b98419be15960
Author: Salih Gedik <salih.gedik@yahoo.com>
Date:   Sun, 12 Apr 2015 09:35:30 +0800
Tag:    v2.8.6

MDL-49789 mod_book: filter book chapter content