wavexx/dl — pull request #7 by micha137 (2014-08-14 12:05:36+00:00)
Title: Disable mod_deflate

If the Apache server config has mod_deflate output compression enabled, chunked
transfer encoding is used and the Content-Length header is suppressed.

This results in the browser not knowing the download size and not being able to
display download progress.

So here we just disable mod_deflate in case it is active. If mod_deflate is
not active, setting this environment variable doesn't hurt.

See the comments:
* http://de.php.net/manual/en/function.flush.php
* http://php.net/manual/en/function.readfile.php
* http://php.net/manual/en/function.apache-setenv.php