Git commits in Moodle 2.6.4 by Matteo Scaramuccia

commit 6637cf27b98356e1e432694ee7769f283ef100a2
Author: Matteo Scaramuccia <moodle@matteoscaramuccia.com>
Date:   Sun, 01 Jun 2014 15:17:09 +0800
Tag:    v2.6.4

MDL-29708 Fixed file_exception() arguments in rename().

commit 874db754cebd7220df9c662ccb10b43e3ae6bb01
Author: Matteo Scaramuccia <moodle@matteoscaramuccia.com>
Date:   Sun, 01 Jun 2014 15:14:37 +0800
Tag:    v2.6.4

MDL-29708 Fixed extra slashes in $string['storedfilenotcreated'].