Git commits in Moodle 2.6.7 by Jetha Chan

commit 52555c36989b6704550ed0b3c6e832f5e7e150b7
Author: Jetha Chan <jetha@moodle.com>
Date:   Wed, 12 Nov 2014 15:03:32 +0800
Tag:    v2.6.7

MDL-47920 mod_lti: add capability checks, http headers