Modified BooleanField's to_python method to play nice with encode()ed strings.
Modified BooleanField's to_python method to play nice with encode()ed strings.

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%403372

adieu/django-nonrel,adieu/django-nonrel,adieu/django-nonrel