Enforce stricter use of proper text case

PD's translation engine will shortly be moving to binary comparison
mode, so two words with differing case will now be treated as separate
translations.  To cut down on work for my faithful translators, I've
minimized "same word different case" scenarios as much as possible.
Language file generator: enforce Binary text comparison
Master language file: now binary-comparison-mode compatible
Language files: update against new master language file

Italian is the only language that's currently up-to-date (minus a few
brand new pieces of text).  Machine translation languages will be
updated shortly, while Deutsch, Francais, and Vlaams will need some
manual fine-tuning before they get sent out to translators.