Perhaps you’ve heard about the Tacocopter, the taco-delivering drone that wants to bring you Mexican food. Or the Domino’s video that showed a drone delivering customers warm pizzas. You know about these things because stories about their existence, or possible existence, have been immensely popular — even though these flying gizmos are likely years and years away from actually autonomously delivering anything to our doorsteps. Perhaps thats what prompted Amazon, the world’s largest online retailer, to jump on the drone bandwagon. …