groundwork for Program Date Field
add program date to properites to defaults.properties
add Program Date to FieldConfig
Program Date persistence, Mocks, and Tests
show program date in various views
AJAX updating of Program Date for admin view
Update tests for Program Date
more test additions and vireo export for program date
Merge branch 'vireo_undergrad_sprint1_bo1988_programdate' into vireo_undergrad_sprint1