Boston Celtic champ Ray Allen finally married his long time love, Shannon Walker Williams in a posh private ceremony on Martha’s Vineyard this past weekend. Allen, 33, who has been engaged to Shannon, also 33, for five years, exchanged vows with his beaming bride at a rented waterfront estate in front of a small group of family and friends. The couple’s three kids, Tierra, Ray III and Walker, were front and center along with a special guest the Larry O’Brien Championship trophy that the Celtics won when they put tha spanking on the Los Angeles Lakers. The NBA star and his bride were serenaded by