Git commits in Moodle 3.2.4 by Stephen Vickers

commit 22227b7701d20e67784ce1e29606f19ad08e0bbf
Author: Stephen Vickers <github@spvickers.freeserve.co.uk>
Date:   Tue, 02 May 2017 04:10:40 +0800
Tag:    v3.2.4

MDL-58770 mod_lti: Strip HTML from parameters