[tug-board] distributing the CD as an image for download

[Thomas Esser]

> yes, in fact TL4b has the `obvious' stuff removed (see list appended), 
> for O'Reilly.

The image is not sold, so there should not be any problem with
"nosell" packages. But, of course, there should not be any additional
work for the iso image.

> latex3/dinbrief
...
> latex3/koma-script

koma-script should be moved into non-free on CTAN. Braune has promissed to
release the next version of dinbrief under LPPL, but the current version
still has silly restrictions, so the "non-free" is currently right.

Thomas