Updates the copyright to 2021 for all files that have a copyright. Files in our source code without the copyright header still do not receive one automatically. Additionally, backlisted files are also excluded.
Previously the copyright of chiliproject which references redmine stated a copyright of redmine up to and including 2017 which is not true for the code we have in here. Because of that I changed that to 2013
Uses FactoryBot to keep and maintain specific records in a special transaction that does not get removed after each spec.
They automatically are created whenever first hitting them.
This makes an excellent time saver for items that are commonly used, such as an admin user account
* enforce having at least one custom option for a list cf
Removes the hand written nested attributes handling by accept_nested_attributes_for.
Removes the arbitrary boundary of having 500 custom options.
* i18n for custom option mgmt
[ci skip]