Elaine May gives a searingly painful and simply heartbreaking performance as a woman descending into dementia in Kenneth Lonergan’s quietly sad play “The Waverly Gallery”.  Marking the Broadway debuts of director Lila Neugebauer and actor Lucas Hedges, this naturalistic memory play is a stunning achievement in dramatizing the indignity of aging and the emotional impact of long-term care on a family unit.  Perhaps Mr. Lonergan’s best play, Elaine May’s performance alone is worth the price of admission.