Git commits in Moodle 2.9.0 by Mitsuhiro Yoshida

commit 6396b58e15ec21c0dbfb859d768c9da1a071c70e
Author: Mitsuhiro Yoshida <mits@mitstek.com>
Date:   Sun, 22 Feb 2015 22:14:38 +0800
Tag:    v2.9.0-beta

MDL-49259 lib: Fix for unzipped Japanese filename character corruption