Typo in seed data for hold cancel notification action triggers

[Michele Morgan]

The messages in seed data for the notifications for hold cancelled due to lack of target use "fullfil" rather than "fulfill".

http://git.evergreen-ils.org/?p=Evergreen.git;a=blob;f=Open-ILS/src/sql/Pg/950.data.seed-values.sql;hb=HEAD#l10781

http://git.evergreen-ils.org/?p=Evergreen.git;a=blob;f=Open-ILS/src/sql/Pg/950.data.seed-values.sql;hb=HEAD#l14262

Also adding a link to another "typo in seed data" bug since they could be addressed together:

https://bugs.launchpad.net/evergreen/+bug/1517232

[Terran McCanna (tmccanna)]

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=commit;h=f1a893f6d03bd2e63e7cd10261e4a816fd8b21d7

This corrects typos in the seed data for these action trigger templates:
- Self-Checkout Receipt
- Hold Cancelled (No Target) Email Notification
- Hold Cancelled (No Target) User Message

[Galen Charlton (gmc)]

Pushed to master, along with an upgrade script that (conservatively) attempts to fix the typo for the Self-Checkout Receipt in existing databases, as there the typo has a bit more import. Thanks, Terran!