You might want to sit down: The original Club Penguin game is going away.   The developers of the Disney-owned online game confirmed Tuesday it will shut down the 11-year-old Club Penguin on March 29 to make way for a new experience — Club Penguin Island — launching on desktop computers and mobile devices. Players can transition to the new game when it launches just before the original game closes.     A huge virtual party will kick off February 1 and run through Club Penguin's close, and m