Copyright (c) 2004 David Hammerton.

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 AUTHOR 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.

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Portions of the code were based on 9wm, which contained this license:

> 9wm is free software, and is Copyright (c) 1994 by David Hogan.
> Permission is granted to all sentient beings to use this software,
> to make copies of it, and to distribute those copies, provided
> that:
>
>     (1) the copyright and licence notices are left intact
>     (2) the recipients are aware that it is free software
>     (3) any unapproved changes in functionality are either
>           (i) only distributed as patches
>       or (ii) distributed as a new program which is not called 9wm
>               and whose documentation gives credit where it is due
>     (4) the author is not held responsible for any defects
>         or shortcomings in the software, or damages caused by it.
>
> There is no warranty for this software.  Have a nice day.