Bug 8230: (follow-up) repair regression on order search

Bug 8230: (follow-up) repair regression on order search

This patch repairs a regression introduced by the main
patch where it became impossible to search for cancelled
orders from the advanced order search form.

This patch also tweaks the wording on the order status
drop-down on the order search form to clarify that the
default status filter is orders that have any status
except cancelled.

To test:

[1] Before applying this patch, perform an advanced
    order search (acqui/histsearch.pl) for orders
    with status cancelled.  Observe that no hits are returned.
[2] Apply the patch and run the search again.  This time,
    the cancelled orders should be returned.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>