Git commits in Moodle 2.8.3 by Frederic Massart

commit b71598cf81cebe98eefab13e310b596ef60fb059
Author: Frederic Massart <fred@moodle.com>
Date:   Wed, 21 Jan 2015 11:33:03 +0800
Tag:    v2.8.3

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

commit fec61db075d73dd4546567ac126db9bb2e1b4ebb
Author: Frederic Massart <fred@moodle.com>
Date:   Fri, 09 Jan 2015 11:34:24 +0800
Tag:    v2.8.3

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

commit 737a5f7fe482a20dc60aba2c59fe49bd6854d6c7
Author: Frederic Massart <fred@moodle.com>
Date:   Thu, 08 Jan 2015 16:03:56 +0800
Tag:    v2.8.3

MDL-48383 task: Indicate when a task will not run if plugin is disabled

commit 2981fb45a0f40498c5048b3070f4903e528a31b0
Author: Frederic Massart <fred@moodle.com>
Date:   Thu, 08 Jan 2015 14:14:37 +0800
Tag:    v2.8.3

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