Give Grails more rails like RESTful routes

UrlMappings.groovy

        "/$controller"(parseRequest: true) {
            action = [GET: "index", POST: "save"]
        }

        "/$controller/$id"(parseRequest: true) {
            action = [GET: "show", PUT: "update", POST: "update", DELETE: "delete"]
            constraints {
                id matches: /\d+/
            }
        }
        "/$controller/new"(parseRequest: true) {
            action = [GET: "create"]
        }