Testing new API to submit identifier for survey response
Merge pull request #41 from DwayneJengSage/develop

add consent signature image to Java SDK
Resolving conflict
Updating to develop
Updating SurveyResponse API to use identifier rather than GUID
Cleanup
Making identifier final
Merge pull request #40 from alxdarksage/survey-responses

Testing new API to submit identifier for survey response
change ConsentSignature.birthdate from DateTime (full timestamp) to LocalDate (calendar date)