Git commits in Moodle 2.5.1 by Gilles-Philippe Leblanc

commit f7d180a7fb99e7003a57b934ecd66f84672ada0a
Author: Gilles-Philippe Leblanc <gilles-philippe.leblanc@umontreal.ca>
Date:   Wed, 22 May 2013 02:43:07 +0800
Tag:    v2.5.1

MDL-38239 gradebook: Importing grades from a .txt file with commas for decimals causes an error