GLOBAL MARKETS-Oil hits four-year low as expectations fade for OPEC cuts

* Oil prices near four-year low as hopes fade for OPEC output cut* European shares buoyed by ECB bond-buying hopes* Asian shares edge up, helped by stimulus around the worldBy Marc JonesLONDON, Nov 27 (Reuters) - Fading hopes OPEC will cut production when it meets Thursday sent oil prices tumbling to a four-year low and the world stock-market rally paused for Thanksgiving in the United States.Gulf