By Denny Dyroff, Entertainment Editor, The Times Unionville Community Fair Each year, a sure sign that autumn has arrived is the weekend when the annual Unionville Community Fair (113 East Street Road, Unionville, http://www.ucfair.org) is held. The fair, which is running now through October 15, is a real down-home country fair with farm equipment displays, cow pie bingo and a farm market. It serves...