Bug 13286 - Checkouts table due date not updated when an item is renewed.

Bug 13286 - Checkouts table due date not updated when an item is renewed.

When an item is renewed from the checkouts table, the new due date is
displayed in the renewal column, but the old date due is still displayed
in the due date column. This should be updated as well.

Test Plan:
1) Apply this patch
2) Renew an item from the checkouts table
3) Note the date due is updated in the "Due date" column

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
This works well in my test. My librarians will be grateful for the fix
-- they were complaining about this bug.

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Works as described, passes tests and QA script.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>