Corrected some initializations and comments
This should fix the first bug of
http://aamasgame.appspot.com/ataa-2013/game/366004

@jongstra can you confirm this should be 0?
This should fix the fourth bug of
http://aamasgame.appspot.com/ataa-2013/game/366004

This is the only possible spot I could find that might give this error:
    AttributeError: General instance has no attribute 'blobpath'