Fixed bug in MSC.EditEventType mentioned in last commit, though it
would be better to change the dummy FieldDataModel to include Datatype.
Left commentated code in case that gets fixed.
Also made minor changes to EventController to fix casting of DBNull
in ActionResult Index.
Merge branch 'master-dev' of https://github.com/foxhide/PKSU-Gruppearbejde into master-dev