AUTHORS: add Akinori MUSHA <knu@FreeBSD.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7812 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

AUTHORS

@@ -8,6 +8,7 @@ Sigma Designs Inc.
 ARM Ltd.
 Hewlett-Packard Development Company, LP
 
+Akinori MUSHA <knu@FreeBSD.org>
 Alexander Botero-Lowry <alexbl@FreeBSD.org>
 Alexander Karpinsky <homm86@gmail.com>
 Alexandre Vassalotti <avassalotti@gmail.com>