By Denny Dyroff, Entertainment Editor, The Times John 5 The Sellersville Theater (24 West Temple Avenue, Sellersville, 215-257-5808, www.st94.com) has a reputation for presenting shows stretching across a wide swath of genres. This week is a prime example. The Sellersville Theater will present The Security Project (high level tribute project for the music of Peter Gabriel), Crack the Sky (classic...