Bug 15282: Switch default CHECKIN notice to Template Toolkit

Bug 15282: Switch default CHECKIN notice to Template Toolkit

Test Plan:
1) Ensure dependancies are applied
2) Apply this patch
3) Update your CHECKIN notice to match the following:

The following items have been checked in:
----
[% biblio.title %]
----
Thank you.

3) Generate a CHECKIN notice for a patron
4) Note there is no change to the generated notice

Signed-off-by: Mirko Tietgen <mirko@abunchofthings.net>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>