WASHINGTON (Reuters) - New Managing Director pledged on Wednesday to push ahead with reforms to give fast-growing emerging markets greater sway at the global lender. At a news conference on her second day on the job, Lagarde said the global economy was rebounding from the 2007-2009 financial crisis but unevenly as growth in old-line industrial nations trails key emerging markets such as China and India. X She acknowledged demands that institutions such as the IMF better reflect the shifting balance...