TAMPA -- John F. Kerry's quest for the White House will probably end with an election-night event in Copley Square that could attract the huge crowds, security, and reporters reminiscent of the Democratic National Convention, while offering Bostonians a chance to witness history. As many as 30,000 people are expected at the event Kerry hopes will be a victory party. He wants to stage the event outside the Boston Public Library on Copley Square, surrounded by the nearby Trinity Church and John Hancock Tower, aides said yesterday. Seth Gitell, spokesman for Mayor Thomas M. Menino, confirmed that Kerry's campaign had...