The authors, Darafei Praliaskouski (Komzpa) and Andrew Shadura,
explicitly disclaim copyright in all jurisdictions which recognise such
a disclaimer. In such jurisdictions, this software is released into the
Public Domain.

In jurisdictions which do not recognise Public Domain property, this software is

  Copyright © 2009—2013 Darafei Praliaskouski <me@komzpa.net>
  Copyright © 2010—2013, 2016 Andrew Shadura <andrew@shadura.me>

and is released under the terms of the ISC License (see below).

In jurisdictions which recognise Public Domain property, the user of this
software may choose to accept it either as 1) Public Domain, 2) under
the conditions of the ISC License (see below), or 3) under the terms of
dual Public Domain/ISC License conditions described here, as they choose.

The ISC License is compatible with both the copyleft and proprietary
software, being as close to Public Domain as possible with the minor
nuisance of being required to keep this copyright notice and license
text in the source code. Note also that by accepting the Public Domain
"license" you can re-license your copy using whatever license you like.

The full text of the ISC License follows:

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY
SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.