GLOBAL MARKETS-European stocks set for biggest weekly gain of 2014

* Asia shares buoyed as Wall St surges for second day * BOJ sticks with bond buying, ECB creeping closer to QE * Risk appetite begins to re-emerge By Marc Jones LONDON, Dec 19 (Reuters) - World markets are ending their last full week of 2014 on a high, as Wall Street made its biggest two-day advance since late 2011 and European shares headed for their strongest week of the year. The gains came amid relief that the Federal Reserve appears in no rush to withdraw stimulus from