Enabled content-length in Special:DownloadFile even when gzip is on. Should probably check the http spec to see if Content-Length should match the decoded or encoded length
# Used for testing mod_rewrite.
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule (.*) install.php?do=modrewrite_test&str=$1
</IfModule>