Portuguese fixes

Some Portuguese fixes thanks to rakowozz.
Among other things, something that may be applicable to other languages:
"(...) since these are proper nouns or, even better, descriptive names, it's acceptable to have the "de" preposition omitted. It then gives it the same meaning as "HEMTT Transport", opposed to "Transport HEMTT".
http://forums.bistudio.com/showthread.php?178253-Authentic-Gameplay-Modification&p=2766216&viewfull=1#post2766216
Merge pull request #1082 from 11RDP-LoupVert/patch-31

Portuguese fixes