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
mend
Fixed some checkstyle errors
Added tests for the practicalcontroller
Fixed checkstyle errors
#SETSAILFORFAIL
Fixed checkstyle errors
Fixed things mentioned in the pull request comments
Fixed the last comments
Fixed showing an error to the user when it was already coupled to a practical
Fixed the last comments
Merge pull request #14 from florisverburg/feature_practical_registration

Feature practical registration
Basic Linkedin authentication
Removed language from the user
Change javadoc settings