Add robots.txt

Signed-off-by: Renato Carvalho <renatolz@gmail.com>
Activate i18n

Signed-off-by: Renato Carvalho <renatolz@gmail.com>
Gems update

Signed-off-by: Renato Carvalho <renatolz@gmail.com>
Ajustes texto

Signed-off-by: Renato Carvalho <renatolz@gmail.com>
Ajustes conteudo e small tweaks

Signed-off-by: Renato Carvalho <renatolz@gmail.com>