Git commits in Moodle 3.2.4 by Skylar Kelty

commit 11580ef62a757ce38848afa064bde794a4d57809
Author: Skylar Kelty <s.kelty@kent.ac.uk>
Date:   Thu, 20 Apr 2017 18:14:46 +0800
Tag:    v3.2.4

MDL-58658 caching: Add static acceleration unit test for empty arrays


commit 8afd92382e3717d4b73a4aa3187778e603dcc0f6
Author: Skylar Kelty <S.Kelty@kent.ac.uk>
Date:   Thu, 20 Apr 2017 16:49:09 +0800
Tag:    v3.2.4

MDL-58658 caching: Fix static acceleration for empty arrays