Officials have released the names of all six people killed in a fire at a New Ulm bed and breakfast last weekend.  They are 48-year-old Roberta McCrea of New Ulm, the owner of the Bohemian Bed and Breakfast, and her daughters 15-year-old Abby Wood and three-year-old Savannah McCrea.  Also killed were 67-year-old Andrew Hardington of Nebraska; and 62-year-old Joseph Bergman and 59-year-old Dian Bergman both of Centuria, Wisconsin.  Fire officials say the Bohemian was not licensed to be a bed and breakfast.  If McCrea had sought an innkeeper's license, a fire safety inspection would have been required.  Investigators are now trying to determine if any of the people paid to stay there.  The cause of the fire is still under investigation and arson has not yet been ruled out.  It is still unclear where the fire broke out.