Git commits in Moodle 2.5.0 by Aaron Barnes

commit ece1f162c3c0f7e0d69d7a3515ce967ae920430a
Author: Aaron Barnes <aaron.barnes@hbcosmo.com>
Date:   Sat, 06 Apr 2013 19:00:05 +0800
Tag:    v2.5.0-rc1

MDL-38011 completion: Use new localised role names

commit 15b97a9f21d398b5072f1fdbeb626a91ea6e07ab
Author: Aaron Barnes <aaron.barnes@hbcosmo.com>
Date:   Sat, 06 Apr 2013 18:33:19 +0800
Tag:    v2.5.0-rc1

MDL-37537 completion: Fix incorrect lang string reference in block