[Lapack] Copyright license for BLAS

And Jakub Kurzak writes:
> You can use the attached copyright form.

Note also that many pieces of the reference BLAS now are in the
public domain.  See the "Published without a copyright notice" or
the " Published without notice, and without subsequent
registration within 5 years" lines with dates <= 1978 of the
"Works Published in the US" part of:
  http://www.copyright.cornell.edu/public_domain/

Jason