CNN  —  Big money, big ideas and big egos — the art world has all the necessary ingredients for a juicy controversy. This may be why eye-rolling and schadenfreude emerge so virulently whenever said controversies occur. After all, as the American painter Ad Reinhardt once quipped: “Art is too serious to be taken seriously.” The year in art included plenty of snark over new depictions of the British royal family that were perceived as too aggressive or too generic, as well as an infamous banana