[SCL] SCL spec

[Chris Menzel]

I've put a new version of the SCL spec on the web that I believe
possesses the properties discussed at the telecon last Tuesday (though I
have no doubt forgotten some things).  There is also I simple DTD at the
end of the document.

  http://cl.tamu.edu/docs/scl.html

Murray, feel free to add section numbers and other reference points as
you suggested.

-chris