Implementing LoopData

This type acts for a handle to storage of non-`Send` data. The handle itself is
sendable across threads and is therefore suitable for storage in a `Future`.
This data uses communication internally and a new method on `Task` to ensure
that when the data needs to be accessed the future will find its way to the
right thread.

More on this type coming soon!

src/lib.rs

@@ -29,8 +29,11 @@ pub mod timer_wheel;
 mod slot;
 #[path = "../../src/lock.rs"]
 mod lock;
+mod mpsc_queue;
+mod channel;
 
-pub use event_loop::{Loop, LoopHandle};
+pub use event_loop::{Loop, LoopHandle, AddSource, AddTimeout};
+pub use event_loop::{LoopData, AddLoopData, TimeoutToken};
 pub use readiness_stream::ReadinessStream;
 pub use tcp::{TcpListener, TcpStream};
 pub use timeout::Timeout;