the first ip in  x-ip-chan is always the correct client IP, 

this is just a demonstration pull req related to https://github.com/gadicohen/meteor-headers/issues/15 and is not intended for merge.
if you you agree that x-ip-chan's first value is always the correct client's IP address with meteor 0.7.1.2, a refactor will be needed.

Right now I,m using dev4side/meteor-header repo in my project smart.json and I'm receiving the correct client IP.

let me know what do you think