Bugfix :: loadFromTVDB : Prevents corrupted data from TheTVDB
tv_shows.show_name in sickbeard.db can never be a NoneType. Patch prevents this from happening if someone has removed the seriesname attribute in the TVDB show entry.
Merge pull request #681 from Conjuro/Bugfix-show_name-None

Bugfix :: loadFromTVDB : Prevents corrupted data from TheTVDB