Copyright issues in Open Dylan

Something that I've been meaning to mention for a while is the usage of
some of the CMU sources within Open Dylan.

An example would be:


https://github.com/dylan-lang/opendylan/blob/master/sources/io/format.dylan

There are CMU copyrights in these files:


   - sources/dfmc/reader/lexer-transitions.dylan
   - sources/dfmc/reader/lexer.dylan
   - sources/dfmc/reader/tokenizer.dylan
   - sources/dylan/sort.dylan
   - sources/io/format.dylan
   - sources/io/pprint.dylan
   - sources/io/print.dylan


The copyright notice says:

    Copyright (c) 1994  Carnegie Mellon University
    All rights reserved.

    Use and copying of this software and preparation of derivative
    works based on this software are permitted, including commercial
    use, provided that the following conditions are observed:

    1. This copyright notice must be retained in full on any copies
       and on appropriate parts of any derivative works.
    2. Documentation (paper or online) accompanying any system that
       incorporates this software, or any part of it, must acknowledge
       the contribution of the Gwydion Project at Carnegie Mellon
       University.

    This software is made available "as is".  Neither the authors nor
    Carnegie Mellon University make any warranty about the software,
    its performance, or its conformity to any specification.

    Bug reports, questions, comments, and suggestions should be sent by
    E-mail to the Internet address "[email protected]".

We should incorporate this notice into:


   - Our LICENSE file.
   - Our library-reference documentation.


I don't think we need to include it in the copyright notice that we print
at run-time from, say, dylan-compiler.

I have a pull request that covers the above:

    https://github.com/dylan-lang/opendylan/pull/444

Agree or disagree? Any other thoughts?

 - Bruce

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