When Red Sox starter John Lackey left the dugout alone at 7:38 p.m. to warm up for Game 6 of the World Series on Wednesday night, the fans along the first base line at Fenway Park stood and applauded. Every fan in the old ballpark was cheering as Lackey arrived in right field and he smiled, just a little. Exactly three hours later, when Lackey left the mound in the seventh inning with glory well in hand, the applause was thunderous. The Red Sox finished their improbable last-to-first journey with a 6-1 victory against the Cardinals before a crowd of 38,447. Most Valuable Player David Ortiz was walked four times, three intentionally. Shane Victorino drove in four runs and Stephen Drew homered….