Copyright 2009 The Go Authors. All rights reserved. Use of this source code
is governed by a BSD-style license that can be found in the LICENSE file.
Extensions of the original work are copyright (c) 2011 Miek Gieben

Copyright 2011 Miek Gieben. All rights reserved. Use of this source code is
governed by a BSD-style license that can be found in the LICENSE file.

Copyright 2014 CloudFlare. All rights reserved. Use of this source code is
governed by a BSD-style license that can be found in the LICENSE file.
