The art world is breathing a sigh of relief today as the announcement of The Solomon R. Guggenheim Foundation's director stepping down was announced. For many, Thomas Krens has been more of a dictator than director; with a focus on franchising a "McGuggenheim" business over exhibiting modern art or focusing on the Frank Lloyd Wright-designed building itself.The Guggenheim flagship -- one of New York's top tourist attractions -- was falling apart. (Its crumbling facade is......