Support compress option from config

Author: glensc

README.md

@@ -187,6 +187,8 @@ Example config:
         'timeout' => 3,
         // the token must match 'upload.token' config in XHGui
         'token' => 'token',
+        // whether to gzip compress the payload
+        'compress' => true,
     ),
 ```
 

src/Saver/UploadSaver.php

@@ -13,7 +13,7 @@ class UploadSaver implements SaverInterface
     /** @var bool */
     private $compress;
 
-    public function __construct($url, $token, $timeout, $compress = false)
+    public function __construct($url, $token, $timeout, $compress)
     {
         $this->url = $url;
         if ($token) {

src/SaverFactory.php

@@ -31,10 +31,11 @@ public static function create($saveHandler, array $config = array())
                     'uri' => null,
                     'token' => null,
                     'timeout' => 3,
+                    'compress' => false,
                 );
                 $userConfig = isset($config['save.handler.upload']) && is_array($config['save.handler.upload']) ? $config['save.handler.upload'] : array();
                 $saverConfig = array_merge($defaultConfig, $userConfig);
-                $saver = new Saver\UploadSaver($saverConfig['uri'], $saverConfig['token'], $saverConfig['timeout']);
+                $saver = new Saver\UploadSaver($saverConfig['uri'], $saverConfig['token'], $saverConfig['timeout'], $saverConfig['compress']);
                 break;
 
             case Profiler::SAVER_STACK: