(PITTSFIELD, Mass.) – Folk-rock singer-songwriter Ani DiFranco performs at the Colonial Theatre on Wednesday, November 9, 2011, at 7:30 pm. Singer-songwriter Melissa Ferrick will warm up the crowd for DiFranco, who gave a triumphant concert at the restored theater in April 2009. (Read Seth Rogovoy’s review of that concert here.) Ani DiFranco has written hundreds…