Test for the Security class
Security class and Roles constants class
Merge branch 'database' into login
Update DatabaseConnection.java
Added loading of driver in the setupConnection.
Handled some nullpointerExceptions and added getUserID, addUser and getUserCount queries.
Added checking of login with the database.
Added registration functionality
Added registration functionality
Updated Database Tests
Updated website layout
Merge branch 'login' of https://github.com/utwente-di/di15 into login
Merge conflicts