Update dependencies

Author: sagikazarmark

composer.json

@@ -17,7 +17,7 @@
     "require": {
         "php": ">=5.5.0",
         "php-http/httplug": "1.0.0-beta",
-        "php-http/client-tools": "^0.1",
+        "php-http/client-common": "^0.1",
         "guzzlehttp/guzzle": "^6.0"
     },
     "require-dev": {

src/Guzzle6HttpAdapter.php

@@ -8,7 +8,7 @@
 use GuzzleHttp\Middleware;
 use Http\Client\HttpAsyncClient;
 use Http\Client\HttpClient;
-use Http\Client\Tools\HttpClientEmulator;
+use Http\Client\Common\HttpClientEmulator;
 use Psr\Http\Message\RequestInterface;
 
 /**