Upgrade Bamboo to use Advanced Auditing

Bamboo has a different audit implementation to Jira and Confluence and a slightly different feature set.

Having a consistent experience and API would make it easier to both administer and develop plugins (Apps) for Bamboo.

The cost of ownership would also go down for Atlassian in the long-term.

There are other JAC tickets for Bamboo's audit log that would be resolved by completing this.