By Denny Dyroff, Entertainment Editor, The Times The Young Dubliners There are times when bands have names that can be deceiving…like the band that is headlining a show on August 12 at the Sellersville Theater (24 West Temple Avenue, Sellersville, 215-257-5808, www.st94.com) — the Young Dubliners. The Young Dubliners — Keith Roberts, lead vocals and acoustic guitar; Chas Waltz, violin,...