[tex-live] automatic format generation for context

[Karl Berry]

    don't know how to handle them in texlive. Of course they need to be
    in the bin

Right.  We put them into the /source/ tree, so that when all the various
arch builders run their make, it ends up in the bin dir that gets
committed.

In other words, I'll take care of it :).  (And the *.tlpsrc files; it
will take a little time.)

Thanks,
k