Bug 17502: Throw some exceptions in output_pref

Bug 17502: Throw some exceptions in output_pref

Test plan:
Run the adjusted t/DateUtils.t

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
NOTE: This patch is amended in QA. The exceptions are moved from a separate
module to the general section of Exceptions.pm.

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: Kyle M Hall <kyle@bywatersolutions.com>