By Sruthi Shankar (Reuters) – The UK’s blue-chip index rose on Wednesday, buoyed by China-exposed stocks following measures taken by the central bank to support the economy, while shares in Easyjet surged after the airline forecast a smaller loss. Miners Anglo American, Antofagasta and Glencore climbed between 2.1% and 3.3% after China’s central bank governor said it will cut the amount of cash that banks must hold as reserves from Feb. 5, bolstering efforts to shore up a fragile economic recovery. Asia-exposed insurer Prudential rose 1.4%, while luxury firm Burberry added 2.3%. “”It has alway…