Merge spl_autoload from init to Load::setAutoloadFrom.

Load.php

@@ -39,6 +39,9 @@ class Load
             self::buildAutoload();
         }
         self::$autoload = require(self::$file);
+        spl_autoload_register(array(
+            __CLASS__,
+            'autoload'));
     }
 
     static public function autoload($class)