Add the ability to expire Bamboo audit logs

Bamboo allows a user to Tracking changes to your Bamboo server.

Whenever audit logs are enabled Bamboo will  write records to the audit_log table within the database. This table can grow very large.

Bamboo provides the options to delete the entire audit history.

• To delete your configuration change history, select Delete all global audit logs. 
• To delete all audit logs, including any plan audit logs, select Delete all audit logs.

This feature request is to add an option to delete the logs older than a certain date rather than all entries.