Most of the usual elements that make traditional Super Bowl commercials memorable were present and accounted for at this year’s game — humor, celebrity cameos and popular culture. But this time around, the real draw was what happened outside the broadcast.This year, the biggest action in advertising took place off the television screen as advertisers created multilayered promotions on several fronts.Snarky tweets, battling brands, NSFW topics and even alternative entertainment competing with the Big Game were …