Lyft now testing self-driving car rides

BOSTON - The ride-hailing company Lyft is now sending self-driving cars to pick up passengers in a Boston neighborhood.  The cars will have backup human drivers at the wheel and will be limited to short routes within the city's Seaport District, a burgeoning tech startup hub.  Lyft and its Boston-based partner nuTonomy, which builds self-driving software, announced Wednesday that the pilot project has begun.  Boston city officials approved t