By Denny Dyroff, Entertainment Editor, The Times  Ley Line Pandemic restrictions have had a stranglehold on live entertainment for more than a year but now, finally, the grip is starting to loosen. The calendar of shows over the next week still is limited with regard to venues but it does feature variety – and that is a victory. The Sellersville Theater (24 West Temple Avenue, Sellersville, 215-257-5808, www.st94.com)...