Finished UserDTO

Fixed UserDTO object to use BaseModelData, commented out privates.
Finished ProjectDTO
Finished SprintDTO
Finished AcceptanceTestDTO
Finished DailyScrumEntryDTO
Finished DiscussionDTO
Finished PriorityDTO
Finished TaskDTO
Finished TeamDTO
Finished UserStoryDTO
Finished WorkloadDTO
Finished WorkblockDTO
Merge remote-tracking branch 'origin/dto_objects'