Deprecate dedicated Stdin class, use Stdio "data" event instead

Author: clue

README.md

@@ -507,7 +507,7 @@ $stdout = $stdio->getOutput();
 
 #### Stdin
 
-The `Stdin` represents a `ReadableStream` and is responsible for handling console input.
+[Deprecated] The `Stdin` represents a `ReadableStream` and is responsible for handling console input.
 
 Interfacing with it directly is *not recommended* and considered *advanced usage*.
 
@@ -525,6 +525,7 @@ Should you need to interface with the `Stdin`, you can access the current instan
 You can access the current instance through the [`Stdio`](#stdio):
 
 ```php
+// deprecated
 $stdin = $stdio->getInput();
 ```
 

src/Stdin.php

@@ -5,7 +5,9 @@
 use React\Stream\Stream;
 use React\EventLoop\LoopInterface;
 
-// TODO: only implement ReadableStream
+/**
+ * @deprecated
+ */
 class Stdin extends Stream
 {
     private $oldMode = null;

src/Stdio.php

@@ -217,6 +217,9 @@ public function close()
         $this->output->close();
     }
 
+    /**
+     * @deprecated
+     */
     public function getInput()
     {
         return $this->input;