Git commits in Moodle 2.5.3 by Andrew Davis

commit 17988b18540df717ca094aaa8caac15a219e99d3
Author: Andrew Davis <andrew@moodle.com>
Date:   Mon, 28 Oct 2013 18:42:59 +0800
Tag:    v2.5.3

MDL-42286 questionbank: add behat tests for putting questions in categories MDLQA-95

commit 0a4563b1d475b19492351b8dda8e109fd4ec990d
Author: Andrew Davis <andrew@moodle.com>
Date:   Tue, 22 Oct 2013 10:22:48 +0800
Tag:    v2.5.3

MDL-42284 core_message: adding behat tests for viewing message history MDLQA-135

commit 9d7c75bb3a89bc31d083ad383bb79125786be5fa
Author: Andrew Davis <andrew@moodle.com>
Date:   Thu, 10 Oct 2013 10:27:33 +0800
Tag:    v2.5.3

MDL-41379 core_outcome: added some CSS to the course outcome table to make it display nice

commit aba5044091f6850b37c480be3e597234569488a5
Author: Andrew Davis <andrew@moodle.com>
Date:   Tue, 08 Oct 2013 14:59:16 +0800
Tag:    v2.5.3

MDL-26244 mod_date:added some logic show or hide the file picker button based on repository availability

commit 3234d689b451aa77fdbce742195a9088a4d663af
Author: Andrew Davis <andrew@moodle.com>
Date:   Mon, 07 Oct 2013 15:58:58 +0800
Tag:    v2.5.3

MDL-26170 RSS: fixed RSS cache clearing when items are deleted