lib/server.js: select correct address family for address

[eqyiel]

This is #26 with the requested changes.

[A-312]

@eqyiel Don't forget to add : fixes: #20, #24, #26

@trevoro Do you will merge this one ? Do you need help with your module ?

[wzhouwzhou]

Hey @eqyiel, any updates here?

[tlrobinson]

@trevoro I think a lot of people would greatly appreciate you merging this (or another fix for #16, #20, and #24) and publishing a new version.

In the meantime, you can yarn add https://github.com/mango-chutney/node-named.git#select-correct-address-family

[A-312]

@tlrobinson -> #38 (comment)