merge from hpdl r844; force the mktime timestamp to use the first day of the month, otherwise dates like 29-[current_month] will miss February
merge from hpdl r844; force the mktime timestamp to use the first day of the month, otherwise dates like 29-[current_month] will miss February

osCommerce/oscommerce,haraldpdl/oscommerce,osCommerce/oscommerce,haraldpdl/oscommerce