Bamboo syslog integration

Bamboo uses an audit message format that is non standard and flat. The audit logs themselves are accessible for inspection through the Bamboo UI or directly from the database.

A syslog integration would consist of:

1. Using syslog message format for the audit log entries as described in RFC5424.
2. The ability to store the audit log messages to: the database, a file in the filesystem, or an external entity such as a syslog server.

The syslog integration for the audit logs would provide the following benefits:

1. A standardized format for the audit log entries which can be processed by external log analysis tools.
2. The possibility to send the audit log message when the event happens to an external syslog daemon which can in turn trigger a reaction to the event.