[Sculptor 3] Support for deployment to JBoss AS 7.2 with project nature "pure-ejb3" and corresponding "Pure EJB3 Tutorial"

[Torsten Juergeleit]

After working on #48 - Generator: Update templates for JBoss AS 7.2 and implementing the EAR archetype for #18 - Maven: Migrate archetypes from Sculptor 2 it was possible to close #12 - Tutorials: Migrate "Pure EJB3 Tutorial" :-)

Now we have a Pure EJB3 Tutorial for Sculptor 3 with JBoss AS 7.2.

/Torsten