Function mi18n

Now the function supports formated strings like %s. e.g. echo mi18n("May the %s be with %s", 'force', 'you'); will output: May the force be with you

Package: Core\I18N
Copyright: four for business AG <www.4fb.de>
License: http://www.contenido.org/license/LIZENZ.txt
Author: Timo Hummel
Located at includes/functions.i18n.php

Parameters summary
`string`	`$key`	the string to translate

Return value summary
`string`	the translated string