Revert changes to StudentApplicationController and related models/views from earlier today (commits 170af4691da435fb560e38f35574e4e7f1e80edf and cafc3cba70e3f372ccb71bf08987a0d66910f26c).
Rename StudentApplicationController to StudentController and remove the application information from related views.
Add sorting and filtering of related attributes in StudentController's index view, as well as add a couple of additional attributes.