Git commits in Moodle 2.7.5 by Frederic Massart

commit 5634dcb828fa99f76c1d3cabd0fcd55c2dee1568
Author: Frederic Massart <fred@moodle.com>
Date:   Wed, 21 Jan 2015 11:33:03 +0800
Tag:    v2.7.5

MDL-48921 admin: Keep the search string in the URL after form submission


commit 8818f55a7590f1195be90d2094feb14f747889d9
Author: Frederic Massart <fred@moodle.com>
Date:   Fri, 09 Jan 2015 11:34:24 +0800
Tag:    v2.7.5

MDL-38142 mod_forum: Allow viewing of student posts in hidden courses


commit 96ed0694ef47ee01163197676863011772dcc47f
Author: Frederic Massart <fred@moodle.com>
Date:   Thu, 08 Jan 2015 14:14:37 +0800
Tag:    v2.7.5

MDL-44907 admin: Better styling of admin settings validation errors