Bug 13234 [Follow-up] Make on-site checkouts visible in OPAC

Bug 13234 [Follow-up] Make on-site checkouts visible in OPAC

This follow-up makes a few changes to the template:

1. The "show all" / "show 50" links have been modified to show the
   current state.
2. The tabs are only shown if the OnSiteCheckouts preference is turned
   on.
3. The DataTables configuration has been modified so that title sorting
   ignores articles, sorting on the the first column is disabled, and
   sorting by date works regardless of your dateformat preference.
4. Some indentation has been corrected and markup comments added.

To test the opacreadinghistory preference must be enabled. Log in to
the OPAC as a patron who has some on-site checkouts as well as regular
checkouts. With OnSiteCheckouts enabled, view the reading history page
and confirm that the tabs work correctly. Test the table sorting
controls.

With OnSiteCheckouts disabled, confirm that the tabs do not appear.

Test the "Show all items"/"Show last 50 items" links and confirm that
the behavior is correct.

Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Works as described, passes tests and QA script.
Good addition to the new on-site feature.

Note: It would be nice to show the 'on-site' note also in the
liste of checkouts on the summary page!

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