generated scaffolds for profile and account
Erklärungen in application_controller hinzugefügt
Revert "generated scaffolds for profile and account"

This reverts commit 1e951f0c6cdfcca9d20bc0963317c1b816338383.
generated teacher and pupil controller - added routes
added routes for teacher and pupil
added helper method to indicate account activity state
Merge branch 'teacher/pupil-crud'