Amazon.com Inc. is pausing all commercial drone deliveries after two of its latest models crashed in rainy weather at a testing facility. The company said Friday it was immediately suspending drone deliveries in Texas and Arizona to fix the aircraft’s software. It’s the latest setback for a program inching toward widespread commercial service more than 11 years after Amazon founder Jeff Bezos announced an initiative to build drones capable of delivering products to customers in less than half a...