A house, a boat and an ultra-luxury Bentley automobile were among the items a Middlesex County man bought with the $7.7 million he cheated out of investors, the state attorney general’s office said Friday in announcing the man’s 7-year prison sentence.Shahid Javed, 41, of Old Bridge, was sentenced Thursday in state Superior Court after he had pleaded guilty to federal fraud charges in April, state Attorney General Jennifer Davenport’s office ann…