Git commits in Moodle 3.0.7 by Tim Hunt

commit ff085ba20beeb851e43f4516e67009674b2412cb
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Wed, 28 Sep 2016 01:07:50 +0800
Tag:    v3.0.7

MDL-56136 restore: better error handling copying file at start


commit 75ed173bac534281a91751f880d06ae8c2356049
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Tue, 27 Sep 2016 02:46:22 +0800
Tag:    v3.0.7

MDL-53744 question file access: fix access checks


commit 14f75eda28912652c6bd43494464a4743b5aff65
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Tue, 27 Sep 2016 01:28:35 +0800
Tag:    v3.0.7

MDL-56069 quiz: nav buttons don't scroll to the right question