- 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/models/system/Message_model.php

@@ -151,7 +151,7 @@ class Message_model extends DB_Model
 		}
 		else
 		{
-			return error($this->db->error(), FHC_DB_ERROR);
+			return error($this->db->error(), EXIT_DATABASE);
 		}
 	}
 
@@ -168,7 +168,7 @@ class Message_model extends DB_Model
 		}
 		else
 		{
-			return error($this->db->error(), FHC_DB_ERROR);
+			return error($this->db->error(), EXIT_DATABASE);
 		}
 	}