Stock futures are mixed ahead of a light Thursday. Aside from the weekly jobless claims report, only one other release is on the schedule and it’s the final revision to Q1 GDP. With markets characteristically looking ahead the revisions for January to March are unlikely to carry much weight. However, at 10:00 Fed chairman Ben Bernanke will face questions about the acquisition of Merrill Lynch by Bank of America. Given that it’s just a day after the Fed’s latest policy statement...