Add SimpleEmail functionality via integrating Apache Commons Email library. Begin work on rsvp and rsvp success XHTML
Add invitation_code property to Guest in Class, DB, and Controller. Remove second rsvp page and use same-page p:messages instead. rsvp XHTML page implemented. NOTE: check why faces context messages aren't performing.
Replace h: and f: prefixes to import from sun java. Remove Plan java classes. Minor alterations