Matthew Cipperly

Apologies for the spam, my git is rusty and I haven't built on another PR previously! Travis doesn't seem to support IPv6 (more info [here](https://docs.travis-ci.com/user/reference/overview/https://docs.travis-ci.com/user/reference/overview/#virtualisation-environment-vs-operating-system) and [here](https://github.com/njh/travis-ipv6-test) ) so I...

Updated to address the above re: not wanting to determine v4/v6 capability each time. Now: * When we connect, save address family * If we fail to connect in the...