Copyright (c) 2001-2019
Allen Short
Amber Hawkie Brown
Andrew Bennetts
Andy Gayton
Antoine Pitrou
Apple Computer, Inc.
Ashwini Oruganti
Benjamin Bruheim
Bob Ippolito
Canonical Limited
Christopher Armstrong
Ciena Corporation
David Reid
Divmod Inc.
Donovan Preston
Eric Mangold
Eyal Lotem
Google Inc.
Hybrid Logic Ltd.
Hynek Schlawack
Itamar Turner-Trauring
James Knight
Jason A. Mobarak
Jean-Paul Calderone
Jessica McKellar
Jonathan D. Simms
Jonathan Jacobs
Jonathan Lange
Julian Berman
Jürgen Hermann
Kevin Horn
Kevin Turner
Laurens Van Houtven
Mary Gardiner
Massachusetts Institute of Technology
Matthew Lefkowitz
Moshe Zadka
Paul Swartz
Pavel Pergamenshchik
Rackspace, US Inc.
Ralph Meijer
Richard Wall
Sean Riley
Software Freedom Conservancy
Tavendo GmbH
Thijs Triemstra
Thomas Herve
Timothy Allen
Tom Most
Tom Prince
Travis B. Hartwell

and others that have contributed code to the public domain.

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.