Change log for the Variable numeric sets question type

Changes in 2.1

This version works with Moodle 4.0.
Fixed a bug with how penaties were applied to marks.
Automated test failures are fixed.
Switch from Travis to Github actions.

Changes in 2.0

Improve styling of answer boxes when reviewing.

Changes in 1.9

Support for Moodle mobile app for questions that don't use the superscripts/subscript editor.
Better grading when the allowed error is very small.
Update Behat tests to pass with Moodle 3.8.

Changes in 1.8

Fix automated tests for Moodle 3.6.

Changes in 1.7

Privacy API implementation.
Update to use the newer editor_ousupsub, instead of editor_supsub.
Setup Travis-CI automated testing integration.
Fix some automated tests to pass with newer versions of Moodle.
Fix some coding style.
Due to privacy API support, this version now only works in Moodle 3.4+ For older Moodles, you will need to use a previous version of this plugin.

1.6 and before

Changes were not documented here.