Minor Data Model changes
Minor Data Model changes

Updated spelling of Voluntary.  
Added Temporary Email address to invitation code so can be later corrected.
sundriver/RAM,sundriver/RAM,dave-cheong/RAM,sundriver/RAM,dave-cheong/RAM,atogov/RAM,dave-cheong/RAM,sundriver/RAM,dave-cheong/RAM,atogov/RAM,atogov/RAM,atogov/RAM