Re-export actix dependency. Closes #260 (#264)

- Re-export actix's prelude into actix namespace
- Removing implicit dependency on root's actix module

src/server/mod.rs

@@ -1,8 +1,9 @@
 //! Http server
+extern crate actix;
+
 use std::net::Shutdown;
 use std::{io, time};
 
-use actix;
 use bytes::BytesMut;
 use futures::{Async, Poll};
 use tokio_io::{AsyncRead, AsyncWrite};
@@ -42,9 +43,8 @@ pub(crate) const MAX_WRITE_BUFFER_SIZE: usize = 65_536;
 /// This is shortcut for `server::HttpServer::new()` method.
 ///
 /// ```rust
-/// # extern crate actix;
 /// # extern crate actix_web;
-/// use actix::*;
+/// use actix_web::actix::*;
 /// use actix_web::{server, App, HttpResponse};
 ///
 /// fn main() {

src/server/srv.rs

@@ -1,10 +1,12 @@
+extern crate actix;
+
 use std::rc::Rc;
 use std::sync::{mpsc as sync_mpsc, Arc};
 use std::time::Duration;
 use std::{io, net, thread};
 
-use actix::actors::signal;
-use actix::prelude::*;
+use self::actix::actors::signal;
+use self::actix::prelude::*;
 use futures::sync::mpsc;
 use futures::{Future, Sink, Stream};
 use mio;
@@ -19,7 +21,7 @@ use native_tls::TlsAcceptor;
 #[cfg(feature = "alpn")]
 use openssl::ssl::{AlpnError, SslAcceptorBuilder};
 
-use super::channel::{HttpChannel, WrapperStream};
+use super::channel::{WrapperStream};
 use super::settings::{ServerSettings, WorkerSettings};
 use super::worker::{Conn, SocketInfo, StopWorker, StreamHandlerType, Worker};
 use super::{IntoHttpHandler, IoStream, KeepAlive};
@@ -405,8 +407,8 @@ impl<H: IntoHttpHandler> HttpServer<H> {
     /// This method requires to run within properly configured `Actix` system.
     ///
     /// ```rust
-    /// extern crate actix;
     /// extern crate actix_web;
+    /// extern crate actix;
     /// use actix_web::{server, App, HttpResponse};
     ///
     /// fn main() {
@@ -478,7 +480,6 @@ impl<H: IntoHttpHandler> HttpServer<H> {
     ///
     /// ```rust,ignore
     /// # extern crate futures;
-    /// # extern crate actix;
     /// # extern crate actix_web;
     /// # use futures::Future;
     /// use actix_web::*;

src/server/worker.rs

@@ -1,3 +1,5 @@
+extern crate actix;
+
 use futures::sync::oneshot;
 use futures::Future;
 use net2::TcpStreamExt;
@@ -21,8 +23,8 @@ use openssl::ssl::SslAcceptor;
 #[cfg(feature = "alpn")]
 use tokio_openssl::SslAcceptorExt;
 
-use actix::msgs::StopArbiter;
-use actix::*;
+use self::actix::msgs::StopArbiter;
+use self::actix::*;
 
 use server::channel::HttpChannel;
 use server::settings::WorkerSettings;