Add a model/controller Assignment and its relation, as well as tests
Add tests for validations for assignments
Validate for the presence of assignment name, description, and course_id
Prevent over-stretching of textareas
Make assignments when populating, make fewer users
Add a basic view for showing a course's assignments
Remove misnamed controller
Add tests for pages for assignment creation
Add functionality for creating assignments
Test for showing assignment name, description, and course on show
Display assignment description on show
Add tests for an edit assignment page
Add an edit page for assignments, as well as an edit/update action in its controller
Test for redirecting back to edit page on bad update
Redirect back to the 'edit' page on bad update, not the 'new' page