How much would you be prepared to pay to ensure there are no screaming babies, tearaway toddlers or whining tweens on your next long-haul flight? One airline is testing the water, with a large adults only seating area on one of its key routes.Europe’s Corendon Airlines will pilot the no kids area on its 10-hour flights between Amsterdam and the Caribbean island of Curacao, charging passengers an additional 45 euros ($49) for a standard seat or $100 for an XL seat, for the privilege of sitting in the...