Git commits in Moodle 2.5.6 by Tim Hunt

commit 8e32e83f0a62325c8dd56e57d904f11fbfeb2d1e
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Sat, 29 Mar 2014 02:37:21 +0800
Tag:    v2.5.6

MDL-31262 fix quiz review capability check.

commit 8af04d5908393db9737bc942ce33e09039dc5097
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Thu, 20 Mar 2014 06:10:40 +0800
Tag:    v2.5.6

MDL-44665 declare all quiz page types in the blocks UI.

commit 8145f93b549321064992e5ea7934eafbe0f7db2b
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Thu, 13 Mar 2014 02:13:43 +0800
Tag:    v2.5.6

MDL-44588 quiz: fix crazy variable called $this.