Git commits in Moodle 2.5.3 by Mark Nelson

commit 38ad8f35da93c19074e924323ad6ca2f1e7a89cd
Author: Mark Nelson <markn@moodle.com>
Date:   Thu, 31 Oct 2013 16:06:42 +0800
Tag:    v2.5.3

MDL-42566 mod_data: introduced check to ensure the picture supplied is valid

commit 89f71167f10dc3bdb80ce3b46d7e90f07e09ff3b
Author: Mark Nelson <markn@moodle.com>
Date:   Wed, 30 Oct 2013 17:24:48 +0800
Tag:    v2.5.3

MDL-42613 core_group: removed unnecessary table row when there is no group description or picture

commit a57462fab529c1fb114216096b1975280ee16a14
Author: Mark Nelson <markn@moodle.com>
Date:   Tue, 22 Oct 2013 16:04:19 +0800
Tag:    v2.5.3

MDL-42465 mod_chat: instantiated message object before declaring properties

commit 4b83e704b14b3ce316f302225bd8c56b74c8b8c4
Author: Mark Nelson <markn@moodle.com>
Date:   Tue, 22 Oct 2013 12:04:06 +0800
Tag:    v2.5.3

MDL-35146 mod_wiki: fixed variable typo and altered code to conform to Moodle guidelines

commit f329d60c38905bbdec1c10491d1dc864df9b392e
Author: Mark Nelson <markn@moodle.com>
Date:   Mon, 21 Oct 2013 12:19:54 +0800
Tag:    v2.5.3

MDL-42429 mod_lesson: removed unnecessary conditional check

commit 3c78a1c3813aedc26fc9b50d4206087a089940bd
Author: Mark Nelson <markn@moodle.com>
Date:   Fri, 18 Oct 2013 11:38:08 +0800
Tag:    v2.5.3

MDL-42421 auth: removed incorrect statement in upgrade.txt

commit fae00b43fe90fd5b26c021e87ac2acb5d27b2903
Author: Mark Nelson <markn@moodle.com>
Date:   Wed, 16 Oct 2013 11:20:40 +0800
Tag:    v2.5.3

MDL-42377 backup: fixed incorrect debugging message

commit 5f931bb78d3ac94fa098c77d4524f2f49fbcc01f
Author: Mark Nelson <markn@moodle.com>
Date:   Mon, 14 Oct 2013 17:21:47 +0800
Tag:    v2.5.3

MDL-42201 backup: introduced new automatic backup state

commit 8580fba15689d319a3e5c0478b2de54e2e55ae20
Author: Mark Nelson <markn@moodle.com>
Date:   Mon, 07 Oct 2013 17:25:44 +0800
Tag:    v2.5.3

MDL-37181 backup: stopped setting the status of unscheduled backups to skipped

commit e26f1e83a1ef9bc06b03dd7885e984ec23e4c128
Author: Mark Nelson <markn@moodle.com>
Date:   Thu, 26 Sep 2013 11:57:21 +0800
Tag:    v2.5.3

MDL-41995 calendar: changed the page layout for the export page

commit 33a42df4ad525719487815311764b250d119d536
Author: Mark Nelson <markn@moodle.com>
Date:   Fri, 06 Sep 2013 12:40:15 +0800
Tag:    v2.5.3

MDL-41417 course: allow the use of duplicated idnumbers if they existed before fix