Added the practical group to the database model. Also added the many-to-many and one-to-many relationships
Fixed a method used for the one-to-many relation
Added tests for the practicalgroup and his many-to-many and one-to-many relations
Menu width edited, and some minor design changes
form names edited
Form layout added
Only bootstrap layout used
Error messages in red text
favicon added
Added a SecuredController
Log in and registration in one page
Different menu when logged in
Session requested in main.scala.html
Fixed findbugs warning
Adjusted the practical to have a secret, also adjusted the test
made a basic secret registration for a practical
Fixed the viewing of a practical, secret doesn't work yet
Fixed a bug in the authentication method
Finished the basic version of practicalcontroller
Fixed the initial and test data, how it is loaded and the displaying of this