By Denny Dyroff, Staff Writer, The Times Diane Coffee Having played Philadelphia numerous times in recent years, Indiana-based Diane Coffee is returning to Philly to headline a show at Boot and Saddle (1131 South Broad Street, Philadelphia, 215-639-4528, www.bootandsaddlephilly.com) on November 11. Names are not always what they seem – especially in the music world. Diane Coffee is not a female vocalist...