Rename 'unstable-stream' feature to 'stream' (#733)

src/async_impl/body.rs

@@ -65,10 +65,10 @@ impl Body {
     /// # }
     /// ```
     ///
-    /// # Unstable
+    /// # Optional
     ///
-    /// This requires the `unstable-stream` feature to be enabled.
-    #[cfg(feature = "unstable-stream")]
+    /// This requires the `stream` feature to be enabled.
+    #[cfg(feature = "stream")]
     pub fn wrap_stream<S>(stream: S) -> Body
     where
         S: futures_core::stream::TryStream + Send + Sync + 'static,

src/async_impl/request.rs

@@ -573,7 +573,7 @@ mod tests {
     }
 
     #[test]
-    #[cfg(feature = "unstable-stream")]
+    #[cfg(feature = "stream")]
     fn try_clone_stream() {
         let chunks: Vec<Result<_, ::std::io::Error>> = vec![
             Ok("hello"),

src/lib.rs

@@ -166,7 +166,7 @@
 //! - **cookies**: Provides cookie session support.
 //! - **gzip**: Provides response body gzip decompression.
 //! - **json**: Provides serialization and deserialization for JSON bodies.
-//! - **unstable-stream** *(unstable)*: Adds support for `futures::Stream`.
+//! - **stream**: Adds support for `futures::Stream`.
 //!
 //!
 //! [hyper]: http://hyper.rs