- refactoring of all classes...
- re-factored playground with new Coordinates functionality
- added interfaces for a higher abstraction
- added several classes and interfaces for a higher abstraction
- replaced the Playground matrix from char to PlaygroundCell.java
- added method to return playground as PlaygroundCell matrix.
- added delete method for Hibernate implementation
- modified git ignore (added sonar)
- added load functionality for couchdb implementation
- added functionality to delete a saved game in the couchdb implementation
- updated save game method of CouchdbDatabase.java
- removed some protected variables to private with getter/setter to satisfy sonar