Git commits in Moodle 3.2.3 by Skylar Kelty

commit e0b69258fbc28812382cc5e527ab770a8e102ee5
Author: Skylar Kelty <s.kelty@kent.ac.uk>
Date:   Thu, 13 Apr 2017 17:36:05 +0800
Tag:    v3.2.3

MDL-58590 mobile: Cache mobile-supporting plugins

commit b42298d3fafed724697387da2edcc736a5fb3f23
Author: Skylar Kelty <S.Kelty@kent.ac.uk>
Date:   Thu, 06 Apr 2017 16:47:41 +0800
Tag:    v3.2.3

MDL-58456 chat: Add missing new in throw