[translations] Auto locale

[Jakub Suchy]

> There is already the possibility to add a README.TXT into the locale 
> package at drupal.org. We need to think along those lines. I don't know 
> how that works right now. Could you inspect a tgz of a language which has 
> such a README?

README.txt is automatically generated by packaging script and if no
README in CVS, this README.txt is empty. I assume that if you create it,
it will be included.

Jakub