By Ryan Vlastelica NEW YORK (Reuters) - Stocks rose for a fourth straight day on Thursday, sending the Dow and the S&P 500 to new closing highs as positive data on the labor market and an encouraging retail outlook eased recent concerns about economic growth. Despite the S&P 500's gain of 11.7 percent this year, investors have fretted about the pace of recovery, especially after last week's dramatically weak March payrolls report. Jobless claims fell far more than expected in the latest week, dropping to the lower end of the range for the year. ...