NEW YORK (Reuters) – Bruce Springsteen, Jon Bon Jovi and the Rolling Stones joined with actors and comedians in headlining a benefit concert on Wednesday for victims of Superstorm Sandy, which six weeks ago devastated scores of communities along the coastline of the U.S. northeast coastline. The celebrity-packed "12-12-12" concert at New York's Madison Square Garden stretched on for nearly five hours, and organizers said it was distributed to nearly 2 billion people worldwide through television feeds, radio and online streaming. …