GLOBAL MARKETS-Dollar, U.S. yields rise on rate-hike prospects

(Updates to North American trading, latest prices, quotes and changes byline and dateline; previous LONDON) * Dollar gains on Fed rate hopes, data * U.S. Treasury yields up * Dollar pushes commodities to near six-year lows By Michael Connor NEW YORK, July 30 (Reuters) - The dollar traded near weekly highs and U.S. Treasury yields rose on Thursday as U.S. gross domestic product data showed a pick-up in consumer spending and encouraged bets that hikes in U.S. interest rates