By Denny Dyroff, Entertainment Editor, The Times ChesLen Preserve Summer has officially arrived and that means the event calendar is loaded with summer festivals. This weekend, there will be special events at two Natural Lands locations. On July 8 from 8-11 p.m., ChesLen Preserve (1199 Cannery Road, Coatesville, 610-486-6288, www.NatLands.org) will host a special event known as “Pints on the Preserve.” East...