[tex-live] license info in tpm file

[Karl Berry]

    you also generate to documentation, or take what's on CTAN (meaning that
    you don't have to check how many runs, makeindex invocations etc are
    needed)?

Well, ctan2tds.pl does have all the necessary logic to generate
documentation, including makeindex, bibtex, and more.  Until quite
recently, this was also necessary, as CTAN did not ask/require authors
to upload generated documentation.

However, now that there is supposed to be uploaded doc, I just changed
ctan2tds so that it would not try to regenerate it.  (Sorry, Sebastian.)