* Adds first tutorial examples
* Add README
* Add packages for XML- and JSON-stuff
* Update CreateJsonVersionedResource.java
* Update CreateJsonVersionedResource.java
* Update CreateXmlDatabase.java
* Update CreateJsonVersionedResource.java
* Add class and minor changes
* Add versioned XML resource example
* Add output when done
* Add exmaple
* Add example
* Add example
* Change to integration tests
* Move to persistence-modules / change class names / BDD test names
* Remove core-api-tutorial folder
* Add test and modify a test
* Add integration test
* Minor cleanup