- started to play around with CDI.

- replaced a number of dependencies with javax:javaee-api:7.0

- fixed up tostring
- added Command which adds JDBC driver as JBoss module and sets up a
  datasource using it. All operations are accomplished using the
  command line interface shipped with JBoss >= 7.
- first web services working with jax-rs/Jackson serialisation.
- added new web services: /order, /post-place, /product-type
- fixed customer mapping in the customer order entity.
- (re)added test specific persistence XML since it now deviates
  significantly from the live one.
- removed dead code
- added order status test
- made order status and payment type more jax-rs friendly