Could things get any worse at Revlon? In a word, yup. The beauty products maker controlled by financier Ron Perelman, said Tuesday it swung to a fourth-quarter loss as U.S. sales declined and the company incurred restructuring charges and costs to discontinue its line of cosmetics for older women. Shares dropped more than 5 percent in morning trading. Revlon lost $5.5 million, or a penny per share, for the three months ended Dec. 31 compared with a profit of $64.3 million, or 17 cents per sh...