Lynchburg, VirginiaJohn McCain has definitely had happier days than last Saturday. As he mounted the podium at Virginia’s Liberty University, once memorably described by its founder, his long-time enemy, as a ‘bible boot camp’ he had a wistful, almost haunted expression. When it was his turn to address his audience of starry-eyed Christian students, there was none of the usual McCain passion and verve. ‘Let me just say that I wish you all well,’ he said. It was hardly the speech to send them out afire to change the world. Rather it was his host, the university’s founder and chancellor, the Revd Jerry Falwell, resplendent in academic robes, who was doing all the beaming — and no wonder.Six years ago when running against George W.