...as requested by Espreon
TODO: update g.w.o, add locale files in data/languages/, add stuff to
about.cfg, add a font entry for the required (not shipped by default)
font
so far only the stuff in po/ is done, what has to be done next is add
the textdomain to the respective file and run a pot-update
the current po files are based on the files from the textdomain
'wesnoth' since this is where the strings currently reside, after the
pot-update only the relevant strings will be left
