It?s Time for… the Portland Mercury?s HIGHBALL! It?s cold and dark and windy, and spring feels very far away. But before you entirely lose your will to live, know that there?s light on the horizon: The Portland Mercury?s HIGHBALL! Along with our pals at Jim Beam and Portland Beverage, the Mercury has teamed up with 50 of Portland?s favorite bars and restaurants?each of which has created a one-of-a-kind, specially crafted cocktail just for Highball! And…