Loading Questionnaire View from ParametersStorage and SequencesStorage + Launching Questionnaire Activity and tracking Questionnaires status + tracking termination of BeginQuestionnaires
Code Style
Fix if sequence for areBeginQuestionnairesCompleted
Questionnaires are only pending when notified with notification

Otherwise, their status can stay null until they're open in the
PageActivity
No need to setNotificationSystemTimestamp when not notified

We can keep the setNotificationSystemTimestamp,
setNotificationNtpTimestamp, and setStatus calls for when we notify the
questionnaire through notifications (after morning/evening
questionnaires). Even there we don't really need them, since they're not
really meaningful in any way for these questionnaires (only used for
notification lifecycle, and filtering of results).
Merge pull request #217 from daydreaming-experiment/feature/questionnaireManager

Loading Questionnaire View from ParametersStorage and SequencesStorage +...