Able, the onboarding software startup in Cleveland, has been acquired for undisclosed terms by Bullhorn Inc., the Boston company that creates software for the staffing industry. Able's 40 or so employees - all of whom have been working remotely for a year and a half - will be employed by Bullhorn, said Gerald Hetrick, Able's CEO. In addition, the acquisition is an important exit event for Able's investors, which include JumpStart Inc. and North Coast Ventures in Cleveland. "It's a wonderful...