OF-3260: Support RFC 7239 Forwarded header for proxied client IP resolution
Add support for the standardized HTTP `Forwarded` header (RFC 7239) alongside existing `X-Forwarded-*` handling in proxied deployments.
Extended proxy connector configuration in both BOSH and Admin Console to include a configurable `Forwarded` header name.
Updated admin pages to expose and persist the RFC-compliant header setting (`FHeader`) in addition to legacy header settings.
(code review) Improve audit logged messages
Log the value obtained from the property, rather than whatever was provided by the end-user. In 99% of the times, this should be equal, but the property itself should always be right.
(review feedback): Change name used in property change listener
The old value was clearly copy/pasted from another listener, referencing the purpose of that property. Although the values aren't used, their names should either be ambiguous, or reference the correct functionality. This helps avoid confusion.
