Brazilian Portuguese Added

Brazilan Portuguese (pt-br) was added. In some phrases i substituted the
"Importer" word to "Importação", to make more sense in our language, but
still clear with "Importer" word is the product/module name.
English was deleted acidentally ;)
Merge pull request #1 from marchimedia/master

Brazilian Portuguese (pt-br) added
Merge pull request #3 from ebeauchamps/master

French language pack
Merge pull request #4 from ebeauchamps/master

Last (very few) corrections.
corrected a translated word that was a placeholder.