Created by: carandraug
As discussed over email. Please review.
Note that I do include the checksums in the same table since if a BitTorrent client already checks them automatically.
Since the torrent also includes the files currently in http://www.robots.ox.ac.uk/~ankush/data.tar.gz it should be possible to modify the script to take the path for the downloaded dataset instead of downloading things (but note that data.tar.gz has sample.h5 while in the torrent it was renamed sample.h5).