By Denny Dyroff, Entertainment Editor, The Times  When Sarah Borges performs live, she rocks the house. Borges, is a Boston guitarist/vocalist whose music has been described as “walking that fine line between punk and country.” When Borges straps on her guitar and starts to sing, she rocks out. There is country, blues, punk, and rock in her … Continue reading On Stage Extra: Sarah Borges rocks, but is hard to define