Add uTorrent API support & ThePirateBay provider.

SickBeard can now support uTorrent in the same way that it supports sabnzbd. The uTorrent API also supports magnet links so we can add thepiratebay as a provider.

added: uTorrent API acces
added: uTorrent in Search Settings
added: ThePirateBay provider (original from mr-orange)