message: docs(examples): remove distracting derive(Clone, Copy) from Hello
diff: extern crate hyper;
  extern crate futures;
  extern crate pretty_env_logger;
  -//extern crate num_cpus;
  use futures::future::FutureResult;
  @@ -11,7 +10,6 @@ use hyper::server::{Http, Service, Request, Response};
  static PHRASE: &'static [u8] = b"Hello World!";
  -#[derive(Clone, Copy)]
  struct Hello;
  impl Service for Hello {
  