default person account to false when not specified, fixes AttributeError
default person account to false when not specified, fixes AttributeError

chromakey/django-salesforce,hynekcer/django-salesforce,philchristensen/django-salesforce,hynekcer/django-salesforce,django-salesforce/django-salesforce,philchristensen/django-salesforce,django-salesforce/django-salesforce,philchristensen/django-salesforce,chromakey/django-salesforce,hynekcer/django-salesforce,django-salesforce/django-salesforce,chromakey/django-salesforce