Added interfaces verbatim from PDF.  Which took ages because while PDFs assure that everyone can view them identically, they do not assure that everyone can copy from them identically (eg. copying a block of code sometimes scrambled the line ordering).  Offer a ZIP file of the interfaces in future please!!!
Fixed many errata in the javadoc (mainly grammatical).
Create stub implementations of all interfaces.
Created test for ContactImpl
Created test for MeetingImpl, started writing test for PastMeetingImpl.