Git commits in Moodle 2.2.5 by Lorenzo Nicora

commit dcc36c3aa2041665e5b77c63e29531f2e7b3d64e
Author: Lorenzo Nicora <lorenzo.nicora@gmail.com>
Date:   Sun, 10 Jun 2012 15:49:37 +0800
Tag:    v2.2.5

MDL-33531 Fixed the regexp used to find old backup files