Instructor

Created by: ryoung2512

Big push:

1. Instructor panel implementation.
2. Migration for instructor panel.
3. Fix for highlighting errors bug.
4. Fixed copyright year.

Instructions to make it work with this change:

1. INSERT INTO roles('role') values('instructor');
2. If you want to be able to be an instructor. Update yourself in the user_role table, change your roleId to 4.