Adding SpeedCD provider

Cherrypicking from mr-orange's fork
This is https://github.com/WebSpider/Sick-Beard/commit/30d8807d74572389d5f739dd30d028ad757427cc

Closes #47
Merge branch 'speedcd_mrorange' of github.com:WebSpider/SickBeard-TVRage into speedcd_mrorange