This patch adds a cache control header to fetch.php. Without
this header media files can't be opened and viewed with third
party programs directly from the IE browser window. For eg.
Acrobat Reader will display an error message after clicking
on a link to a PDF file. Firefox will work without it.

darcs-hash:20050606154420-7ef76-2b46b0eb626488cec122a00cc32f86a28542b161.gz

fetch.php was not fully adapted to the new directory structure - fixed

darcs-hash:20050605130154-7ef76-22d557d49733aaa8d992e767ebfed16c92fb3c76.gz

The media popup was not fully adapted to the new directory
structure - fixed

darcs-hash:20050605125410-7ef76-79a24e1bd735cc4b89c1d7ee1f28b1a19b84f841.gz

This patch changes the directory structure of dokuwiki as suggested
in http://www.freelists.org/archives/dokuwiki/06-2005/msg00045.html

As the changes.log is not managed through darcs you need to move it your
self to the new location in data/changes.log

I think I modified the code at all nessessary places, but I may have
forgotten a few things.

darcs-hash:20050605103842-9977f-af20f63c1d604888375d175d89ac6bd71566d47d.gz