Merge pull request #78 from bangpound/feature/update-php-http--mock-client

Update php-http/mock-client.

Author: shouze

composer.json

@@ -33,7 +33,7 @@
         "symfony/process": "~2.1|~3.0",
         "guzzlehttp/psr7": "^1.3",
         "php-http/curl-client": "^1.5",
-        "php-http/mock-client": "^0.3.2"
+        "php-http/mock-client": "^1.0"
     },
     "config": {
         "optimize-autoloader": true,