char *zip_mount_file; /*no xml part*/
char *backend_installer; /**< package backend installer, attr*/
char *external_path; /**< external storage path if exists, no xml part*/
+ char *pkg_certs_dir; /**< pkg certificate directory, attr*/
+ char *use_system_certs; /**< use system certificates, attr*/
GList *icon; /**< package icon, element*/
GList *label; /**< package label, element*/
GList *author; /**< package author, element*/