Git commits in Moodle 2.7.5 by Tim Hunt

commit da36d32ef79edba957e564f6304fbb553c084b31
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Thu, 15 Jan 2015 20:37:16 +0800
Tag:    v2.7.5

MDL-48860 behat: fix matching select human-readable value

commit 60802d3a1ce7941ae972848f020f0b77aaa411cc
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Tue, 13 Jan 2015 21:55:33 +0800
Tag:    v2.7.5

MDL-48829 quiz nav: add a data attr to buttons giving the page

commit 4047bebb6527ca268fbebbbc4389efd3a592b6a7
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Mon, 12 Jan 2015 21:18:49 +0800
Tag:    v2.7.5

MDL-48477 questions: no delete icon for only top-level category

commit 4655dedf1f831192c0a2666d9dc69668846bd854
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Fri, 09 Jan 2015 01:41:51 +0800
Tag:    v2.7.5

MDL-48474 qtype_shortanswer: answers were not being trimmed.