Typo error on occupancy modifiers actions

And some other typo corrections :
hotel_addons_upgrades_admin.inc
line 57, 58, need t()

  $addon_products .= l(t('Configure New Upgrade/Addon Product'), 'admin/store/hotel_booking/upgrades_addons/add'). ' | ';
  $addon_products .= l(t('Limit Available Upgrade/Addon Product Classes'), 'admin/store/hotel_booking/upgrades_addons/settings');

line 182, need t()

    $option_list = array('0' => t('-- Please make a selection --')); }

I think you could set some improvments on language managment, in some case it's better to use format_date() instead of date() because it can handle format and localization. Sometimes you use t() function in a wrong way to replace variables on text (see : http://api.drupal.org/api/function/t/6), it's better to use strtr() or nothing if localization is handle by fromat_date();

Here is a patch.

Regards.
Mog.