By Denny Dyroff, Entertainment Editor, The Times Pennsylvania Hunt Cup There are several events in the area this weekend with impressive numbers regarding anniversaries – lofty numbers such as 88, 75, 53, 47 and 41 – numbers marking the events’ anniversaries. The Pennsylvania Hunt Cup (Pennsylvania Hunt Cup racecourse, Newark Road, Unionville, 484-888-6619, http://pahuntcup.org) is one of...