Copyright (c) 2014 - 2015, Přemysl Janouch <p.janouch@gmail.com>
 All rights reserved.

 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.

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 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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 CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.