LONDON (Reuters) - Oil prices were broadly steady on Thursday despite bearish signals from rising U.S. crude oil stocks and weak factory activity in China.Brent crude futures were down 4 cents at $60.57 a barrel by 1024 GMT, erasing earlier gains. They had dropped by 1.6% on Wednesday and the contract is set for a monthly decline of about 0.4%.U.S. West Texas Intermediate (WTI) crude futures were down 14 cents at $54.92. On the month, however, they are set for a rise of about 1.4%, its biggest..