Merge pull request #217 from daydreaming-experiment/feature/questionnaireManager

Loading Questionnaire View from ParametersStorage and SequencesStorage +...
In sync service, if a sequence is successfully uploaded, do not delete it if it is a begin questionnaire (for the moment, begin only) and set its status in db to uploadedAndKeep
Merge branch 'feature/questionnaireManager' of https://github.com/daydreaming-experiment/app into feature/questionnaireManager