Restify comes bundled with a selection of useful plugins. These are accessible
off of `restify.plugins` and `restify.pre`.

```js
var server = restify.createServer();
server.use(restify.plugins.acceptParser(server.acceptable));
server.use(restify.plugins.authorizationParser());
server.use(restify.plugins.dateParser());
server.use(restify.plugins.queryParser());
server.use(restify.plugins.jsonp());
server.use(restify.plugins.gzipResponse());
server.use(restify.plugins.bodyParser());
server.use(restify.plugins.requestExpiry());
server.use(restify.plugins.throttle({
  burst: 100,
  rate: 50,
  ip: true,
  overrides: {
    '192.168.1.1': {
      rate: 0,        // unlimited
      burst: 0
    }
  }
}));
server.use(restify.plugins.conditionalRequest());