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.
Minor changes to pull before new build.
Tweak RawHD regex to accept mpeg2 and mpeg-2 in the filename.
Add missing ek.ek wrap around isdir check that was reported on the forums:
  http://sickbeard.com/forums/viewtopic.php?f=4&t=6829#p32324
PEP8 whitespace cleanup for postProcessor.py while I was at it.
Implement robots.txt to keep web crawlers out. -- Borrowed from SABnzbd :)