Changes how different classes use the Config class.

They were trying to use it as an array instead of using it's helper method that actually returned a usable array.
Fixes #4.

source/defs/Virtualmin/Virtualmin.php

@@ -11,10 +11,11 @@ class VirtualminHandler
     public function __construct()
     {
         $Config = new Config();
+        $cConfigArray = $Config->getConfig();
         
-        $url = $Config['vmin-url'];
-        $username = $Config['username'];
-        $password = $Config['password'];
+        $url = $cConfigArray['vmin-url'];
+        $username = $cConfigArray['username'];
+        $password = $cConfigArray['password'];
         
         $this->virtualmin = new Virtualmin\VirtualServersClient($url, $username, $password);
     }