- Moved REST_Controller from libraries to core directory

- Changed the relatives includes
- Changed the controller api/v1/CheckUserAuth to be adapted to the AuthLib changes
- Removed function auth from helpers/hlp_authentication_helper
- Adapted function getAuthUID of helpers/hlp_authentication_helper to the AuthLib changes
- Adapted constructor of PermissionLib to the AuthLib changes

application/libraries/PermissionLib.php

@@ -65,7 +65,7 @@ class PermissionLib
 		{
 			// API Caller rights initialization
 			self::$bb = new benutzerberechtigung();
-			self::$bb->getBerechtigungen($this->_ci->authlib->getUser());
+			self::$bb->getBerechtigungen(($this->_ci->authlib->getAuthObj())->{AuthLib::AO_USERNAME});
 		}
 	}