Adding Audit Logs to Reports

My users had a need to query the audit log for various modules in ways that the current built in system would not allow.  Now I could create advanced report after advanced report but really I hate making advanced reports. So I added myself a JIRA task to create some way of reporting on the Audit Logs.

All the files are available for download from the GitHUB link at the end of this post.

This was my list of criteria for this project

1. I need a way to report on any modules audit log
2. I need a way that allows a manager to create their own reports
3. That method has to be familiar to them already (this was really me saying I wanted it in the Reports module)
4. It must not allow editing of Audit Logs in any way
5. It must be fast over millions of records (some of our audit logs are huge)
6. It must translate all the raw data back into English
7. It must allow our system admins to include that new audit_events table data in the reports
8. It cant break the current Audit code