By Marc Jones LONDON (Reuters) - The dollar climbed to a three-year high on Monday and gold was hovering near a three-year low after last week's strong U.S. jobs data fed expectations that the country's central bank could soon wind back stimulus. The dollar index , which measures the greenback against a basket of major currencies, rose to 84.588, its highest since July 2010, before a slight dip in early European trading left it at 84.450. Friday's U.S. ...