Just as Washington Mutual, Inc. (NYSE:WM) shares are 20 Cents away from a 52-week low, Kerry Killinger gets knocked off as chairman.  He's still the CEO, but let's face it, once you run the company shares down from $44 to $8 it's only a matter of time.  Killinger's days are now officially numbered. Today WaMu announced independent director Stephen E. Frank will take over July 1 as chairman. The company says it is one of several measures to strengthen corporate governance and return to profitability. WaMu shares ...