Git commits in Moodle x.x.x by Troy Williams

commit 3d9d924be6f565a192a075b2961c5ec8c0c51cfd
Author: Troy Williams <troy.williams@learningworks.co.nz>
Date:   Tue, 24 Apr 2018 12:01:04 +0800
Tag:    v3.3.6

MDL-61012 course: Allow extending class to set

commit 31ebe1ff67228dc0aa1c911946526ac8336117f5
Author: Troy Williams <troy.williams@learningworks.co.nz>
Date:   Tue, 24 Apr 2018 12:01:04 +0800
Tag:    v3.4.3

MDL-61012 course: Allow extending class to set

commit f9a7a98a4a795d66f4a8c5f8cabb263ecdb21d64
Author: Troy Williams <troy.williams@learningworks.co.nz>
Date:   Tue, 24 Apr 2018 12:01:04 +0800
Tag:    v3.5.0-rc1

MDL-61012 course: Allow extending class to set