Prepare v0.4.2 release

Author: clue

CHANGELOG.md

@@ -1,5 +1,20 @@
 # Changelog
 
+## 0.4.2 (2017-03-10)
+
+* Feature: Forward compatibility with Stream v0.5
+  (#26 by @clue)
+
+* Improve test suite by removing AppVeyor and adding PHPUnit to `require-dev`
+  (#27 and #28 by @clue)
+
+## 0.4.1 (2016-08-01)
+
+* Standalone component
+* Test against PHP 7 and HHVM, report test coverage, AppVeyor tests
+* Wait for stdout and stderr to close before watching for process exit
+  (#18 by @mbonneau)
+
 ## 0.4.0 (2014-02-02)
 
 * Feature: Added ChildProcess to run async child processes within the event loop (@jmikola)

README.md

@@ -21,7 +21,9 @@ as [Streams](https://github.com/reactphp/stream).
   * [Prepending Commands with `exec`](#prepending-commands-with-exec)
   * [Sigchild Compatibility](#sigchild-compatibility)
   * [Command Chaining](#command-chaining)
+* [Install](#install)
 * [Tests](#tests)
+* [License](#license)
 
 ## Processes
 
@@ -133,6 +135,19 @@ alternative, considering launching one process at a time and listening on its
 `exit` event to conditionally start the next process in the chain. This will
 give you an opportunity to configure the subsequent process' I/O streams.
 
+## Install
+
+The recommended way to install this library is [through Composer](http://getcomposer.org).
+[New to Composer?](http://getcomposer.org/doc/00-intro.md)
+
+This will install the latest supported version:
+
+```bash
+$ composer require react/child-process:^0.4.2
+```
+
+More details about version upgrades can be found in the [CHANGELOG](CHANGELOG.md).
+
 ## Tests
 
 To run the test suite, you first need to clone this repo and then install all
@@ -147,3 +162,7 @@ To run the test suite, go to the project root and run:
 ```bash
 $ php vendor/bin/phpunit
 ```
+
+## License
+
+MIT, see [LICENSE file](LICENSE).