Contributed by Mark Wethli / “Edgy” is a word we commonly use to describe daring or provocative art. If anything has been a measure of artistic success in the modern era, it’s been the degree to which new art pushes the boundaries of the work that came before. The term is usually rooted in the theoretical and formal aspects of art making, but the paintings of Nora Sturges – now on view at Sarah Bouchard Gallery in Woolwich, Maine – transport us to edges of another kind…