By Keith Kelly Three new books about James “Whitey” Bulger and his Boston-based Irish mobsters have ignited a turf war among publishers. Today, “Rat Bastards” by John “Red” Shea is slated to hit book shelves from William Morrow. It’s the third Beantown Irish mob book to hit in as many weeks. Shea claims he was a right-hand man to Bulger, current No. 2 fugitive to Osama bin Laden on the FBI’s Most Wanted List. “It’s better that they are using words than guns,” said Doug Grad,