1   This software is provided 'as-is', without any express or implied

     2   warranty.  In no event will the author be held liable for any damages

     3   arising from the use of this software.

     4 

     5   Permission is granted to anyone to use this software for any purpose,

     6   including commercial applications, and to alter it and redistribute it

     7   freely, subject to the following restrictions:

     8 

     9   1. The origin of this software must not be misrepresented; you must not

    10      claim that you wrote the original software. If you use this software

    11      in a product, an acknowledgment in the product documentation would be

    12      appreciated but is not required.

    13   2. Altered source versions must be plainly marked as such, and must not be

    14      misrepresented as being the original software.

    15   3. This notice may not be removed or altered from any source distribution.

    16 

    17   Mark Adler

    18   [email protected]

    19 

    20   Mark accepts donations for providing this software.  Donations are not

    21   required or expected.  Any amount that you feel is appropriate would be

    22   appreciated.  You can use this link:

    23 

    24   https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=536055