WASHINGTON (AP) — U.S. home prices rose at a modest pace in November, held back by weaker sales and a limited number of houses for sale. Economists are hopeful that home sales and construction will rebound this year, partly because price gains are returning to levels consistent with a stable housing market. Lower mortgage rates, healthy hiring, and lower down payment requirements from mortgage giants Fannie Mae and Freddie Mac may also spur sales. "The housing market is heading in the right direction," said Stan Humphries, chief economist at real estate data provider Zillow. More inventory ...