(Reuters) - Price comparison website Moneysupermarket.com reported higher first-quarter revenue on Thursday as it performed well across all its divisions, and said it would return 40 million pounds to its investors via a special dividend.The company, which offers price comparisons on insurance, money, home services products, said revenue rose 19 percent to 104.9 million pounds ($136.8 million) for the quarter ended March."Performance of Home Services was exceptional in the first quarter and we..