ref: dbb83f925a7cb256b69b158e2caf0d99e3c7c5e6
parent: 4aaed87dd97b085b1505e53b7d4564aa8f7f18ef
author: Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com>
date: Wed Mar 22 07:34:17 EDT 2017
hugolib: Read default output formats from site config