Markets Stocks in the News: Innovative Solutions & Support Inc(NASDAQ:ISSC), FalconStor Software, Inc.(NASDAQ:FALC), Lexmark International Inc(NYSE:LXK)By Daniel CurranApril 22, 2014 Innovative Solutions & Support Inc(NASDAQ:ISSC) announced that the board has approved a stock repurchase program, effective as of May 1, pursuant…