Implementing the Java8-vraptor4 Cookbook

Hi guys!

By Otavio's sugestion on thread https://groups.google.com/forum/#!topic/caelum-vraptor/Ilh66ziuxE8 here is the cookbook talking about how to build an web application using vraptor 4, java 8 and wildfly.

Thanks!
@rsaraiva
>  ser registrado no `Persistence.xml` 

and I think it´s better to use `persistence.xml` (lower case)