John Jilnicki, the East Hampton Town attorney, told the members of the Montauk Citizens Advisory Committee and quite a few guests on Tuesday evening that the town is in the process of overhauling several provisions of the town code to make them specific to the hamlet, including the law on mass gathering permits and noise violations. “The legislation we have now is difficult for most people to understand,” he said. The committee, concerned about whether summonses have been issued for code violations, had been trying for some time to get Mr. Jilnicki to a meeting