* add some translatable strings
* updated translations
add option --sort-by-file to updatepo.sh
* Updated de, pt, pt_BR translations
from pull requests #378 (Wuzzy) & #379 (afmachado)
pt.po and pt_BR.po are the same but pt.po is usable by any portuguese speaking people, not only brazilian ones
* improved french translation
To maximize the palette, this uses the colorwallmounted param2 style,
which necessitated modifying the models to make wallmounted look like
normal facedir. This means couches and chairs can now only ever be
placed upright, facing one of N/S/E/W like a couch or chair normally
would, but since the screwdriver was already disabled, it was basically
impossible to rotate them to any other orientation anyway.
Since this is colorwallmounted, it uses the 32-color abridged Unified Dyes
palette.
