WASHINGTON — SpaceX launched a cargo Dragon mission to the International Space Station as the company and NASA reaffirmed their commitment to safety. A Falcon 9 lifted off at 9:29 p.m. Eastern Nov. 4 from Kennedy Space Center’s Launch Complex 39A. The rocket deployed the Dragon spacecraft into low Earth orbit nine and a half minutes later. The spacecraft, flying a mission designated CRS-31 or SpX-31, is scheduled to dock with the ISS at about 10:15 a.m. Eastern Nov. 5.It will dock with the forward port on the Harmony module,…