[Pingus-Devel] Update for the pt_BR.po file

[Ralph Ecthelion]

- Corrected a few mistranslations and added translations for the
levelsets titles.

- Changed "Levelsets" to a less accurate translation due to lack of
space in the textbox.

- Corrected a couple inside jokes on the Halloween set (heh) and a few
portuguese mistakes

FIXME: As descrições dos leveis de Halloween estão com sumários mal
escritos do ponto de vista do português culto do brasil.

pt_BR.po
Description: Text Data