Adjustment for misunderstanding of the API.

Release candidate 3 of the Highlight Changes modules.

Changes since RC2

• Require "npm-asset/diff" in place of "kpdecker/diff"

Release Candidate 2 for the Highlight Changes module.

This release contains a configuration form to define which logging destinations are enabled.
It adds an option to send a notification mail when a configuration is changed.
It also makes it possible to ignore the changes on some of the config files.

Updating from the 1.x branch will result in all logging destinations to be disabled until the configuration is edited.

Changes since 8.x-1.1:

All notable changes to this upcoming project release will be documented in this issue summary.