There’s a new community garden here in Livingston, and it’s right up at the end of my alley at the Lincoln School. The Lincoln School was converted years ago into artists studios — they’re not very expensive and there’s always a waiting list for those nice old classrooms with the big windows. There have always been two big patches of lawn out front, and when the International Fly Fishing Center was there, they’d have casting classes in the summer. This spring, someone got the splendid idea of converting all that useless grass into a community garden. Saturday I walked over…