- Changed helper and language autoload

- Changed language config
- Removed never used constants
- Changed rest_language in rest config file
- Adapted models that where extending FHC_Model
- Adapted code to load hlp_return_object
- Adapted code to use exit status codes constants

application/libraries/DmsLib.php

@@ -199,7 +199,7 @@ class DmsLib
 			if ($this->ci->db->trans_status() === false || isError($result))
 			{
 				$this->ci->db->trans_rollback();
-				$result = error($result->msg, EXIT_ERROR);
+				$result = error('An error occurred while performing a delete operation', EXIT_ERROR);
 			}
 			else
 			{