Git commits in Moodle 2.3.2 by Gilles-Philippe Leblanc

commit 65ab8112a3ca79d21aa0fbc945b4cb092060fa2e
Author: Gilles-Philippe Leblanc <gilles-philippe.leblanc@umontreal.ca>
Date:   Fri, 06 Jul 2012 05:41:19 +0800
Tag:    v2.3.2

MDL-33822 SCORM Interactions report - fix formatting of empty cells.