Add unpublish logging when anything is unpublished.

Problem/Motivation

It's hard to know what's getting unpublished on when content/etc is deleted/unpublished in Drupal.

Steps to reproduce

Proposed resolution

Add helper function and logging.

Remaining tasks

• Update code
• Review and test
• Commit

User interface changes

Logs will have info on what is unpublished.

API changes

Data model changes