*Gold still on track for sharp weekly loss despite rally. NEW YORK, April 5- Gold rallied over 1.5 percent on Friday, on track for its biggest one-day gain since November, as disappointing U.S. job data fueled expectations that the Federal Reserve will continue its bullion-friendly bond purchases.
WASHINGTON, April 5- A proposal by U.S. securities regulators to require exchanges to improve protection against technology glitches and natural disasters is too narrow and should include more market players, a top New York Stock Exchange official said Friday.