feat(lib): convert to use tokio 0.1

BREAKING CHANGE: All uses of `Handle` now need to be new-tokio `Handle`.

Co-authored-by: Sean McArthur <sean@seanmonstar.com>

examples/hello.rs

@@ -2,6 +2,10 @@
 extern crate hyper;
 extern crate futures;
 extern crate pretty_env_logger;
+extern crate tokio;
+
+use futures::Future;
+use futures::future::lazy;
 
 use hyper::{Body, Response};
 use hyper::server::{Http, const_service, service_fn};
@@ -16,10 +20,13 @@ fn main() {
         Ok(Response::new(Body::from(PHRASE)))
     }));
 
-    let server = Http::new()
-        .sleep_on_errors(true)
-        .bind(&addr, new_service)
-        .unwrap();
-    println!("Listening on http://{} with 1 thread.", server.local_addr().unwrap());
-    server.run().unwrap();
+    tokio::run(lazy(move || {
+        let server = Http::new()
+            .sleep_on_errors(true)
+            .bind(&addr, new_service)
+            .unwrap();
+
+        println!("Listening on http://{} with 1 thread.", server.local_addr().unwrap());
+        server.run().map_err(|err| eprintln!("Server error {}", err))
+    }));
 }