CAMBRIDGE -- U.S. Rep. Joseph P. Kennedy II made one of his few public appearances in Massachusetts yesterday since his annulment dispute became public, but he continued to insist it was a private matter. "I'm not going to start commenting on all of the various issues that have been brought up," a subdued Rep. Kennedy said after recognizing the winners of local Small Business Administration awards. "I just feel that these are personal family matters and I think that I will continue to try to treat them as such," he said. In a book to be published next month, the...