Prepare 1.4.0 (#11)

Author: LKaemmerling

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## 1.4.0 (27.02.2019)
++ Implement `metrics` method on `LKDev\HetznerCloud\Models\Server\Server` (@paulus7, https://github.com/LKDevelopment/hetzner-cloud-php-sdk/pull/10)
+
 ## 1.3.1 (20.02.2019)
 + Fix a error on the update methods.
 

src/HetznerAPIClient.php

@@ -23,7 +23,7 @@ class HetznerAPIClient
     /**
      * Version of the API Client
      */
-    const VERSION = "1.3.1";
+    const VERSION = "1.4.0";
 
     /**
      * @var string
@@ -227,4 +227,4 @@ public function httpClient()
     {
         return $this->httpClient;
     }
-}
+}