VIENNA (AP).- A painting by Austrian expressionist Egon Schiele has been rehung at a Vienna museum after a 12-year possession battle over the artwork stolen by the Nazis. The painting was returned over the weekend after the Leopold Museum agreed to pay $19 million (euro15 million) as part of the settlement. U.S. authorities had refused to return the painting after it was exhibited in New York because heirs of the owners laid a claim to it. The painting was put on display again Monday. Leopol