Use EventEmitterTrait instead of base class

Author: cursedcoder

src/Request.php

@@ -2,7 +2,7 @@
 
 namespace React\HttpClient;
 
-use Evenement\EventEmitter;
+use Evenement\EventEmitterTrait;
 use Guzzle\Parser\Message\MessageParser;
 use React\SocketClient\ConnectorInterface;
 use React\Stream\WritableStreamInterface;
@@ -14,8 +14,10 @@
  * @event error
  * @event end
  */
-class Request extends EventEmitter implements WritableStreamInterface
+class Request implements WritableStreamInterface
 {
+    use EventEmitterTrait;
+
     const STATE_INIT = 0;
     const STATE_WRITING_HEAD = 1;
     const STATE_HEAD_WRITTEN = 2;

src/Response.php

@@ -2,7 +2,7 @@
 
 namespace React\HttpClient;
 
-use Evenement\EventEmitter;
+use Evenement\EventEmitterTrait;
 use React\Stream\ReadableStreamInterface;
 use React\Stream\Stream;
 use React\Stream\Util;
@@ -13,8 +13,10 @@
  * @event error
  * @event end
  */
-class Response extends EventEmitter implements ReadableStreamInterface
+class Response implements ReadableStreamInterface
 {
+    use EventEmitterTrait;
+
     private $stream;
     private $protocol;
     private $version;