Added skeleton models for GradingSurveyGroup and Records.
SurveyRecordGroup has been renamed to GradingRecord.
GradingSurveyGroup will hold which Surveys should be linked. While the acompanying GradingRecords (with their reference to a GradingSurveyGroup) will hold the Records for each StudentProject that can take these Surveys.
#!/usr/bin/env python
from django.core import management
if __name__ == "__main__":
management.execute_from_command_line()