By Denny Dyroff, Entertainment Editor, The Times Corinne Mammana and Erich Cawalla Valentine’s Day is just around the corner. That means love is in the air and, as expected, special Valentine’s Day concerts are scheduled at a variety of venues around the area. One of these Valentine’s Day concerts is scheduled for February 11 at the Sellersville Theater (24 West Temple Avenue, Sellersville, 215-257-5808,...