Wall St. stocks steady, bond yields fall, oil hits 2016 high after Fed

By Dion Rabouin NEW YORK (Reuters) - Wall Street stocks were steady, U.S Treasury debt yields fell sharply, and oil prices rose to their highest level of the year on Wednesday after the Federal Reserve announced it would keep U.S. interest rates unchanged. The Fed left their policy interest rate target at the previous level of 0.25 percent to 0.5 percent as expected,and while it left the door open to a rate rise in June, its statement implied that it was in no hurry to follow on from its Decembe