GLOBAL MARKETS-Dollar climb hits commodities, stocks to close qtr lower

* Dip in euro zone inflation knocks euro down, lifts dollar * Global equity markets head for worst quarter in two years * Dollar strength drags gold, oil lower (Adds oil settlement prices) By Chuck Mikolajczak NEW YORK, Sept 30 (Reuters) - The dollar climbed on Tuesday after weak euro zone inflation data for September increased expectations of new stimulus from the European Central Bank, while world stock markets were on track for their largest quarterly drop in more than two y