Exciting Vacotion Fifteen-year-old Rita Quigley's Summer vacation from high school wta be the most exciting she has ever known. Producer Joe Pasternak saw her for the first time in U reversal's crowded I commissary the other day. lunching w:th her mother and sister, Juanita, Universal-! 8-year-old contract actress. The result is a part in Pasternak's newest Durbi picture, "First Love.'