Bug#345604: ConTeXt documentation is non-free

[Florian Weimer <fw@deneb.enyo.de>]

* Ralf Stubner:

>> | All rights reserved. No part of this publication may be reproduced,
>> | stored in a retrieval system, or transmitted in any form or by any
>> | means, electronic, mechanical, photocopying, recording or otherwise,
>> | without prior written permission of the publisher.
>
> (from /usr/share/doc/texmf/context/manual/cont-eni.pdf.gz)
>
> This sounds bad, indeed. However, I think that the ConTeXt manual is
> actually covered by the general ConTeXt license in
> /usr/share/doc/texmf/context/base/mreadme.pdf.gz and
> /usr/share/doc/texmf/context/base/LICENSE.teTeX, which is free.

But we lack the ConTeXt source code for those PDFs, do we?  This means
it still has to go into non-free.