Git commits in Moodle 2.2.4 by Rex Lorenzo

commit c31149fa6714176cf1312094f502b50b48dab2f7
Author: Rex Lorenzo <rexlorenzo@gmail.com>
Date:   Sun, 20 May 2012 12:27:38 +0800
Tag:    v2.2.4

MDL-33090 - Missing strings in XMLDB editor - added in missing strings