Update portuguese translation of Java documentation

Also, includes the new software versions to stay in sync with the updates on #370.

Still, I have a question: the portuguese documentation have a mention about the Travis environment using maven mirrors. The equivalent section doesn't exists in the actual english documentation. Still worth mentioning in docs?

What's better: 1-) remove the pt-BR mention 2-) put the docs back to english version 3-) don't touch it?

Thanks for the attention!

cc/ @gildegoma