Bug 15986: Add a script for sending hold waiting reminder notices

Bug 15986: Add a script for sending hold waiting reminder notices

This patch adds a script for sending holds reminder notice to patrons.

We add a 'send_notice' routine to Koha::Patrons - this will either send using the patron's
email prefs, or allow forcing of a single method via the cron

To test:
 1 - Create an email hold reminder notice for a single library (Koha module: Holds, code HOLDREMINDER, branch: CPL)
 2 - Set some waiting holds today for patrons at CPL, ensure those patrons have 'email' as the transport for hold filled notices
 3 - perl misc/cronjobs/holds_reminder.pl -v -lettercode HOLDREMINDER -n -li CPL
 4 - You should see the patrons here would have received emails
 5 - perl misc/cronjobs/holds_reminder.pl -v -lettercode HOLDREMINDER -li CPL
 6 - You should see the emails that were sent
 7 - Check the patron notices tab to confirm
 8 - Note a ptron with two holds waiting receives only one notice
 9 - perl misc/cronjobs/holds_reminder.pl -v -lettercode HOLDREMINDER -li CPL -days 3
10 - No notices are sent
11 - Adjust the waiting date for the holds:
    UPDATE reserves SET waitingdate=DATE_SUB(CURDATE(), INTERVAL 3 DAY) WHERE waitingdate = CURDATE();
12 - perl misc/cronjobs/holds_reminder.pl -v -lettercode HOLDREMINDER -li CPL -days 3
13 - Confirm the holds are now reminded
14 - Set yesterday as a holiday for CPL
15 - perl misc/cronjobs/holds_reminder.pl -v -lettercode HOLDREMINDER -n -li CPL -holidays -days 3
16 - Notices should not be sent
17 - perl misc/cronjobs/holds_reminder.pl -v -lettercode HOLDREMINDER -n -li CPL -holidays -days 2
18 - Notices should be sent again
19 - perl misc/cronjobs/holds_reminder.pl -v -lettercode HOLDREMINDER -n -holidays -days 2
20 - Should get feedback that notice was not found for other libraries
21 - perl misc/cronjobs/holds_reminder.pl -v -lettercode HOLDREMINDER -n -holidays -days 2 -mtt sms
22 - Notice is not found
23 - Add the notice for sms
24 - perl misc/cronjobs/holds_reminder.pl -v -lettercode HOLDREMINDER -n -holidays -days 2 -mtt sms
25 - The notice should be sent
26 - Check patrons messaging tab to confirm
27 - prove -v t/db_dependent/Koha/Patrons.t

Sponsored by: The Hotchkiss School (http://www.hotchkiss.org/)

Signed-off-by: Kim Gnerre <kgnerre@hotchkiss.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>