Git commits in Moodle 2.4.6 by Jerome Mouneyrac

commit 74f48cfa059ce03bfe4ac628677740079cfb7af6
Author: Jerome Mouneyrac <jerome@mouneyrac.com>
Date:   Thu, 08 Aug 2013 17:15:03 +0800
Tag:    v2.4.6

MDL-30895 switch from dl tag to table in the accessible chat