Fix registrantType not being removed from conference object
- create test
- correct name of table in RegistrantTypeService
Return answers with registrant object
- add answers to each Registrant in RetrieveRegistrationProcess
- Send a Registrant in place of RegistrantEntity to Registration.fromDB
Merge pull request #230 from CruGlobal/EVENT-55

Remove registrantType from conference Object
Merge branch 'EVENT-24' into EVENT-57
Return answers with registrant object
- add answers to each Registrant in RetrieveRegistrationProcess
- Send a Registrant in place of RegistrantEntity to Registration.fromDB
Add current date and time stamp to all DB inserts and creates.
Update Spacing
Update Spacing
Merge pull request #232 from CruGlobal/EVENT-insert_times_inDB

Add current date and time stamp to all DB inserts and creates.
Return Answers with registration
- move answer / registrant matching to Registration
Merge pull request #231 from CruGlobal/EVENT-57

Return answers with registrant object
`RegistrationEntity` needs overridden equals/hashcode
 - for `CollectionUtils.firstNotFoundInSecond` to work
 - added functional test

Add @frett's global registry client

Add global_registry_id field
 - remove `PersonQueries`
 - add globalRegistryId to `PersonEntity`

Grab full Global Registry model from other commits
 - removed `GlobalRegistryPerson` previously added

Finished adding code from other branch
 - no integration with project yet
Update pushed to global registry after completed registration
Add single value as array feature
specify `EventRegistrationGlobalRegistryClient`
Add code to receive updates from GR
Add code to retrieve an update from GR upon user login
Refactor `GlobalRegistry` to an interface
 - and add a mock implementation for tests
Do a GR push for each `Registrant`
 - since each `Registrant` represents a `Person`
add a registrant type