dirty-hack for correct resolve client address from server

[Wolfer]

for fix issue #11

[Mon-Ouie]

Hey,

Thanks for the fix. I’m not sure how to reproduce the issue for myself though. I merged it as it doesn't seem to introduce any problems.

[Wolfer]

By default DRb.start_service bind on local hostname. In my case, I have localname "calculate.local" and connect to remote host via VPN. But remote server doesn't know how to resolve "calculate.local" and can't established reverse-connection.
Glad to be helpful

P.S. Sorry for my english