- AuthLib is loaded only in fhcauth_helper, PermissionLib and REST_Controller

- Removed all the NOT usefull loads of helpers and libraries
- Fixed undefined index in controllers/system/UDF and model system/UDF_model
- APIv1_Controller now loads helper fhcauth
- FHC_Controller now loads ithe fhc and session helpers too
- Added/Fixed comments
- PermissionLib does NOT use anymore the getAuthUID function from the fhcauth helper, now relies on AuthLib directly
- REST_Controller loads directly the AuthLib when is needed

application/core/APIv1_Controller.php

@@ -10,10 +10,13 @@ class APIv1_Controller extends REST_Controller
     public function __construct()
     {
         parent::__construct();
-        
+
+		// Loads helper fhcauth to manage the authentication
+		$this->load->helper('fhcauth');
+
         // Loads return messages
 		$this->load->helper('message');
-		
+
 		log_message('debug', 'Called API: '.$_SERVER['PHP_SELF'].'?'.$_SERVER['QUERY_STRING']);
     }
 }