Added the implementation of the method getFutureMeetingList(Calendar
date) and created the method sortListByDate
Added the implementation of the method getPastMeetingList(Contact
contact). Modified the signature and the return of the method
SortListByDate to be a restricted WildCard.
Added the implementation of the method getContacts(String name).
Added the implementation of the method addNewPastMeeting(Set<Contact>,
Calendar, String) 
Added the implementation of the method addMeetingNotes