Added a few lab notes, fixed lab notes with improper lengths.
Fix lang/merge_po.sh for empty lang/incoming.
Update .pot and merge current translations.
More missing gettext.
Fix some broken translator comments.
Update .pot and .po again.
Remove unnecessary string return from vehicle::use_controls().
Oops.
Some minor i18n fixes for advanced_inv.cpp.
Merge remote branch 'origin/pr/3003'
Merge remote branch 'origin/pr/2999'
Merge remote branch 'origin/pr/2997'