PHILADELPHIA – There are worse things to be called. So, yes, it’s okay to use the “S” word when you’re talking about the Atlanta Hawks, a team virtually no one has noticed most of this season, and whose dearth of national TV appearances has already been covered on this site. They don’t mind being referred to as the “Spurs of the East.’’ Heck, who wouldn’t? While LeBron’s return to Cleveland , Carmelo and the Knicks’ fall from grace to embarrassment, along with the