[tex-live] cmdtrack license

[Karl Berry]

    * cmdtrack
    Reason: The only licensing info says:
    %%%     copyright       = "Copyright 1999 Michael John Downes.
    %%%                        This program may be used, distributed, or
    %%%                        even sold, without restrictions.",
    Unfortunately, it does not grant permission to modify.

Indeed.

As you may know, Downes died several years ago.  I have been unable to
find any contact information for his heirs (three daughters).  So I have
removed cmdtrack from TL.

(Robin, if you concur, please switch it to other-nonfree in the Catalogue.)

karl