Git commits in Moodle 2.3.1 by Rossiani Wijaya

commit 4b0e6f38fab70f9aa52371cd14b3043ee20f7562
Author: Rossiani Wijaya <rwijaya@moodle.com>
Date:   Mon, 02 Jul 2012 14:51:47 +0800
Tag:    v2.3.1

MDL-31987 Assignment module: fixed upgrade version

commit 45353da409e52521e68c3be61982a9b6f7986e97
Author: Rossiani Wijaya <rwijaya@moodle.com>
Date:   Thu, 28 Jun 2012 13:53:19 +0800
Tag:    v2.3.1

MDL-31987 Assignment module: Assignment count submissions correctly. For advanced upload assignment, store file count of each submission into assignment_submissions.numfiles

commit ec70cf6ef1d47599955d935f30a13be8a5ab330b
Author: Rossiani Wijaya <rwijaya@moodle.com>
Date:   Tue, 26 Jun 2012 18:08:46 +0800
Tag:    v2.3.1

fixed the ->spacer <br> param