Git commits in Moodle 3.4.1 by Tim Lock

commit d26cdca687acc52e0830f94f4e6c775cf364c16e
Author: Tim Lock <tim@netspot.com.au>
Date:   Mon, 13 Nov 2017 05:20:46 +0800
Tag:    v3.4.1

MDL-58817 mod_lti: cartridge: maintain custom icons

commit c5b7a25ee6282ef6da80a168c44a96e06eb73816
Author: Tim Lock <tim.lock@netspot.com.au>
Date:   Wed, 13 May 2015 11:49:18 +0800
Tag:    v3.4.1

MDL-34161 mod_lti: Added Behat tests