Account for the restructuring of tors web server

```
~ $ curl https://www.torproject.org/dist/tor-0.2.4.23.tar.gz
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>302 Found</title>
</head><body>
<h1>Found</h1>
<p>The document has moved <a href="https://dist.torproject.org/tor-0.2.4.23.tar.gz">here</a>.</p>
<hr>
<address>Apache Server at www.torproject.org Port 443</address>
</body></html>
```