Use HTTP header X-Forwarded-For as IP for blocking if available (for

Use HTTP header X-Forwarded-For as IP for blocking if available (for
the case it's behind a proxy). Failing that use the peer IP given by
TCP/IP.
The operation sequence number is now incremented for each operation
(GET,POST,SEARCH etc). By mistake that was disabled.
Log each HTTP request in a brief format (method followed by path).