Implement model on entity level. answer.serializer, answer.type, question.serializer and question.type unimplemented.
Refactor small changes like unused imports.
Implement DAO layer for new model.
Implement all types of question data and refactor naming
Implement all types of answer data and refactor code formats
Implement JsonSerialization
Refactoring
Add improvements and forgot-password and activation feature
Restore tests
Merge branch 'feature/persistence' into feature/actions