Update samples, demos, labs and Maven archetypes to use new programmatic configuration API

This should cover all demos shipped with Infinispan ( in https://github.com/infinispan/infinispan ) as well as all other demos, quick-starts, archetypes, labs and guides hosted https://github.com/infinispan and elsewhere. Should cover:

• Programmatic API
• XML schemas (use the latest!)
• Maven POMs dependency on 5.1.0.FINAL (but for now at least 5.1.0.CR3)
• Any other sample code on https://docs.jboss.org/author/display/ISPN/Home