Bug 13190: Reintroduce the checkouts export feature

Bug 13190: Reintroduce the checkouts export feature

Bug 11703 breaks the checkouts export feature.

To reproduce: Fill the ExportWithCsvProfile pref and go on the
circ/circulation.pl page. The export column appears, but not the export
button.

Test plan:
Go on the checkout list (circ/circulation.pl and members/moremember.pl)
and verify the export column and the export button appears.
If you click on the button, a file should be generated.

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Mason James <mtj@kohaaloha.com>