Git commits in Moodle 2.5.7 by Damyon Wiese

commit b2f2535c53eb2330735a0f18d516833deb9b979d
Author: Damyon Wiese <damyon@moodle.com>
Date:   Thu, 10 Jul 2014 11:35:47 +0800
Tag:    v2.5.7

MDL-46148 questions: Added missing allow_commit for transaction

commit 59d85345e640f135e4ffdb1bde1f86918f8198af
Author: Damyon Wiese <damyon@moodle.com>
Date:   Thu, 22 May 2014 14:33:49 +0800
Tag:    v2.5.7

MDL-45661 Assign: Clean bad data from DB after MDL-42526

commit 0f18f3fa6ff3761ca2bdc0f61a2b0ab9c1553ca9
Author: Damyon Wiese <damyon@moodle.com>
Date:   Tue, 20 May 2014 18:01:32 +0800
Tag:    v2.5.7

MDL-45606 Unit test fix for MySQL and added a comment about the removed code.

commit c0f29f18d77759fa0fd96a531c2f014e15fd66a3
Author: Damyon Wiese <damyon@moodle.com>
Date:   Mon, 19 May 2014 10:10:59 +0800
Tag:    v2.5.7

MDL-45605 Phpunit: Do not call gc_collect_cycles as part of reset.

commit 3d176316cc1791e258a7c1b2118fd35976c9bcae
Author: Damyon Wiese <damyon@moodle.com>
Date:   Thu, 15 May 2014 15:35:51 +0800
Tag:    v2.5.7

weekly release 2.5.6+