GLOBAL MARKETS-Asian shares, commodities gain on relief over Spain

MSCI Asia ex-Japan adds 0.7 pct, Chinese shares outperform
* Nikkei falls amid end-quarter adjustments, China worry* Euro, Aussie, and commodities drift higher as dollar weakens* Spain's economic reform and budget soothe sentimentBy Chikako Mogi
TOKYO, Sept 28 (Reuters) - Asian...