Added Basic Auth support
Added back response.read() in BasicAuthTransport.
Added support for ratio groups
Added pause() and resume() to Torrent, Fixed issue with multicall over-writing methods when varname is the same.
Added set_visible() on Torrent
Changed group enable, disable methods to use ServerProxy instead of Multicall as it resulted in errors on some environments.
Merge pull request #8 from fuzeman/master

Basic Auth and Ratio Group support