Patch 2 (chriskacerguis#923)

* Update Format.php

Allow access to class witch USE statement

* Update Format.php

Remove notification "Non-static method ... should not be called statically"

Author: grawerpl

application/libraries/Format.php

@@ -1,4 +1,6 @@
 <?php
+namespace Restserver\Libraries;
+use Exception;
 
 defined('BASEPATH') OR exit('No direct script access allowed');
 
@@ -114,7 +116,7 @@ public function __construct($data = NULL, $from_type = NULL)
      *
      * @return object Instance of the format class
      */
-    public function factory($data, $from_type = NULL)
+    public static function factory($data, $from_type = NULL)
     {
         // $class = __CLASS__;
         // return new $class();