Merge pull request #8 from brycied00d/use_404

Return HTTP 404 for torrents not found.
Redirect requests for /torrents/ to the root index.

Rather than an ugly 404 and pointless line in the error log, just
redirect visitors to /torrents or /torrents/ to /
Merge commit '7443e5458c1d14d1920d825babfeef0a0a04ab07' into running