added staff controller
Added default course of 0 to user
Staff index page. Also made course page show staff and students
Changed 'Edit' on nav to user email
Did starting crud stuff for staff, started form
Mode form for new course with datepicker.
Formatted date in datepicker so staff/courses controller would take it
Adds edit-update crud action to staff/courses controller and views
Added destroy, finished crud for staff/courses, however ugly it may look