remctl 2.4

The big change in this version is IPv6 support, using the framework and infrastructure that I'd built for INN. I'm really happy with how well this works. It keeps all the problems self-contained in the portability layer and the code can use the new IPv6-aware interfaces like getaddrinfo and getnameinfo without having to think about IPv6 issues.

I also fixed a problem with detecting network errors when sending tokens, added a newline after server-provided error messages in the command-line client, and added a distinguished error for too many command-line parameters.

You can get the latest version from the remctl distribution page.