Added the different columns to the user model.
Added the Skill model, extended the User model and a test for this
Added the Right and Team model classes and edited User to be able to work with it.
Added two tests for the team and right model classes
Added setters and getters for the team and user model.
Added test to test the setters and getters
Added getters and setters for the right and skill model class
Added tests for the right, skill, team and user models.
Fixed some issues caused by rebasing
Added constraints to the models properties
fixed the yamel test
Fixed some style errors mentioned by Freek
Fixed a checkstyle error
Merge pull request #5 from florisverburg/database

Database
Added a simple registration
Fixed tests and sessions user_id storage
Added some tests
Added a succesfull registration test
Fixed checkstyle
Fixed file endings