Handle the "X-Forwarded-For" header parameter for discovering client IP
address when request comes via proxy/locadbalancer.
Use InetAddress for parsing ip
AddressUtils removed
Code refatoring
Merge pull request #9 from socketIo4Netty/handle_X-Forwarded-For_header

Handle the "X-Forwarded-For" header parameter for discovering client IP address when request comes via proxy/loadbalancer.