Whenever I’m feeling a little blue, I know that I can always count on an Elinor Lipman novel to lift me out of the doldrums. This was confirmed when I read her most recent novel, The Family Man. This book is classic Lipman: likable— albeit flawed—characters, an airy, lighthearted plot, smart social satire, and dialog crisp and sparkling as a fine champagne. The Family Man . . .