In the world of Hollywood feuding families (a la Tori and Candy, Jennifer and Nancy Aniston, Angelina Jolie and John Voight) it's so nice to see a father-daughter duo getting along as nicely as Paul and Stella McCartney. The former Beatle was the ultimate supportive father at Stella's Paris Fashion Week runway show yesterday, bringing along girlfriend Nancy Shevell, chatting with Stella's BFF Gwyneth Paltrow, and