[WIP] Post authors tweaks

@maurogeorge This is a possible fix for GH-140, WDYT?
We need @aneziocampos to let us know a single name for the posts' signature and [profile](http://helabs.com.br/nosso-time/anezio-campos/): "Anézio Campos", "Anézio Marques" or "Anézio Marques de Campos Junior" :P