After forcing the locale-specific read/writes out of our IO, we can
remove the global LOCALE_IO calls in many places.
Still to do: exporters, pcm, specctra, settings, drawing sheets,
plotters
Recommendation is to avoid using the year nomenclature as this
information is already encoded in the git repo. Avoids needing to
repeatly update.
Also updates AUTHORS.txt from current repo with contributor names
