Bug 13261 - Better check in message for patrons with indefinite restricition

Bug 13261 - Better check in message for patrons with indefinite restricition

This patch adds a better check in message for patrons with indefinite restriction.

To test:
Check out an item to a patron.
Add a manual restriction without expiry date to that patron.
Check in the item.

Without patch, the checkin message reads:
Reminder: Patron was earlier restricted until 9999-12-31

Apply patch and repeat steps above.
The message should now read:
Reminder: Patron has a restriction (no expiry date)

NOTE: Changed wording at two places following Owen's  suggestion.  New: "Patron
has an indefinite restriction"

Signed-off-by: Frederic Demians <f.demians@tamil.fr>
Thanks Marc for catching this case. I was thinking like you that the wording
sounded strange while playing with bug 13242. Merge the original patch and the
followup, containing a better wording, thanks to Owen comment.

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Works as described, no problems found.
Passes tests and QA script.

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