BOSTON Leo Carlsson is settling into life in the NHL in all the usual ways. He has rented an apartment, finally, a way out of the hotel he's been staying in. He has started to get to know his Anaheim Ducks teammates, some of whom aren't that much older than the 18 year old rookie.But in other ways, Carlsson's introduction to the NHL has been anything but typical.When the Ducks played the Boston...