optimize cleanup proses (make faster); back to use rm instead 'rm' because lxshell_ already '';  mod fixweb to delete 1x domains configs; use graceful instead restart for httpd; hiawatha possible running in normal install or 'portable' version; add select 'timezone' for server/client level; change io process from sll 'nice' to 'ionice'; fix installer.php (missing var in rm_if_exists)