TORONTO (CP) - Barely a year after an Ontario court gave its blessing to same-sex marriage, a lesbian couple is trying to untie the knot in what critics dismissed Wednesday as little more than a judicial stunt to test the limits of Canada's divorce laws. The pair, identified in court documents only as J.H. and M.M., were together for five years prior to their decision to get married last June, but were separated just five days later - two weeks after the Ontario Court of Appeal legalized same-sex marriages. "It's clearly a set-up case after five days where they are...