update for brazilian portuguese translation

Hi,

I have updated the brazilian portuguese translation. I just revised libpq, psql, pg_dump, pgscripts, pg_controldata, pg_resetxlog and jdbc. I just finished the translation of postgres. Now, postgresql is 100% in pt_BR. :)

This is a big file, so I put it here:
http://www.ufgnet.ufg.br/euler/translation_7_4_pt_BR.tgz

Please apply.

Regards,

--
Euler Taveira de Oliveira
euler (at) ufgnet.ufg.br
Desenvolvedor Web e Administrador de Sistemas
UFGNet - Universidade Federal de Goiás