Lindsay Crouse and Richard Snee in Living Together.Last summer it seemed I was alone in raving over Gloucester Stage's production of Table Manners, the first play in Alan Ayckbourn's celebrated trilogy The Norman Conquests. In the Globe, Louise Kennedy smiled wanly but held her nose; meanwhile, in the Phoenix, Ed Siegel said it made him laugh but didn't "haunt his dreams." Okay . . . Meanwhile t…