Made small change to addNotes method in MeetingImpl to allow more than one set of notes to be added, by adding new notes on new line each time. Also added junit tests for addMeetingNotes()
switched setter and getter method for notes into PastMeetingImpl
Finished addMeetingNotes implementation. junit tests pass as expected. had to move setter and getter methods for notes back into MeetingImpl and made small change to one of the junit tests to correct a mistake in expected output
added method to update the meetingList. If meetings have been added in the past as future meetings. However, time has now passed and these meetings are now in the past, this method changes their class from FutureMeeting into PastMeeting