Bug 13168 - "Today's checkouts" sort improperly because issuedate lacks seconds.

Bug 13168 - "Today's checkouts" sort improperly because issuedate lacks seconds.

TO REPLICATE:

Prepare a bunch of Items (6+) for checking out, or have a set of barcodes ready for copy-pasting.
Check-out those items quickly within one minute and observe that the sorting order is not always from the first checkout to the last.

This is because the issuedate doesn't have seconds defined.

AFTER THIS

The bunch of Items is sorted properly.

Tiny patch, works as expected. Passed QA script.
Signed-off-by: Marc Veron <veron@veron.ch>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Mason James <mtj@kohaaloha.com>