Photo: St. Louis PoliceGilbert SummersGilbert Summers, a former employee of Copia Urban Winery and Market, was sentenced today to five years in federal prison for the 2007 fire that caused $2.7 million in damages to the Washington Avenue eatery. Summers was charged with the crime last year following a six-month investigation. Apparently he'd been upset with the restaurant about a paycheck issue. As we reported last summer, Summers has served time before. In 2003 he pleaded guilty to a charge of