Clearer Approach to Appointments v Class Schedule

We have simplified how the system determines what should be on the appointments schedule v. the regular class schedule. Now the schedule is determined by the setting on the COURSE in Manage, Passes. If it is an Appointments-enabled course, then any link instance (or private session) will be on the Appointments calendar. If it is not an appointments-enabled course, then it will be on the main regular schedule.