Log the incoming IP address when handling TR request

[Stefan Paetow]

In the logs in the trust router, it would be a really good idea to log the remote (incoming) IP address that the request is coming from. Currently I see something like this:

tids_handle_connection: Connection authorized!
tids_read_request():Request Received, 1241 bytes.
tr_tids_req_handler: Request received (conn = 6)! Realm = ov-apc.moonshot.ja.net, Comm = ov-apc.moonshot.ja.net

Ideally I'd like to see something like this:

tids_handle_connection: Connection authorized!
tids_read_request():Request Received from 212.219.179.131, 1241 bytes.
tr_tids_req_handler: Request received (conn = 6)! Realm = ov-apc.moonshot.ja.net, Comm = ov-apc.moonshot.ja.net

That way we know which IP has requested the connection. I don't know if this is possible when you have a proxy in front of the trust router (i.e. the way we do to balance incoming requests), but it would be worth asking Adam?