Added basic Cache class to tvdb_api
Added basic Cache class to tvdb_api

Collisionc/sickbeard_mp4_automator,phtagn/sickbeard_mp4_automator,Filechaser/sickbeard_mp4_automator,dbr/tvdb_api,Collisionc/sickbeard_mp4_automator,dpimenov/tvdb_api,Filechaser/sickbeard_mp4_automator,phtagn/sickbeard_mp4_automator,dpimenov/tvdb_api