Remove the Reactor::run method (#58)

This commit removes the `Reactor::run` method which has previously been used to
execute futures and turn the reactor at the same time. The tests/examples made
heavy usage of this method but they have now all temporarily moved to `wait()`
until the futures dependency is upgraded. In the meantime this'll allow us to
further trim down the `Reactor` APIs to their final state.

examples/tinydb.rs

@@ -54,7 +54,7 @@ use futures::prelude::*;
 use futures::future::Executor;
 use futures_cpupool::CpuPool;
 use tokio::net::TcpListener;
-use tokio::reactor::Reactor;
+use tokio::reactor::Handle;
 use tokio_io::AsyncRead;
 use tokio_io::io::{lines, write_all};
 
@@ -80,12 +80,11 @@ enum Response {
 }
 
 fn main() {
-    // Parse the address we're going to run this server on, create a `Reactor`, and
-    // set up our TCP listener to accept connections.
+    // Parse the address we're going to run this server on
+    // and set up our TCP listener to accept connections.
     let addr = env::args().nth(1).unwrap_or("127.0.0.1:8080".to_string());
     let addr = addr.parse::<SocketAddr>().unwrap();
-    let mut core = Reactor::new().unwrap();
-    let handle = core.handle();
+    let handle = Handle::default();
     let listener = TcpListener::bind(&addr, &handle).expect("failed to bind");
     println!("Listening on: {}", addr);
 
@@ -163,7 +162,7 @@ fn main() {
         Ok(())
     });
 
-    core.run(done).unwrap();
+    done.wait().unwrap();
 }
 
 impl Request {