The bankrupt 171-year-old candy maker known for its chalky Necco Wafers and those little inscribed hearts that are everywhere on Valentine's Day got a sweet message from a rival Wednesday: BE MINE.Ohio-based Spangler Candy Co. had the winning $18.83 million bid for the New England Confectionery Co., or Necco, at a federal bankruptcy auction in Boston.The deal from the company that makes Dum Dums lollipops will most likely ensure a future, at least in the short term, for some of the nation's most familiar candies.AP"They're a crowd favorite," said Chris Baker, who sells Necco candies