force torrent url to ascii to prevent quirky behaviour from libtorrent
(fix for issue #48)
Fixed download limiting

The download limits were not being set in the correct libtorrent session. The global session was not in the scope. Corrected the session and download limiting is working
Merge pull request #51 from system123/master

Fixed download limiting
Merge branch 'master' of https://github.com/bricky/Sick-Beard