Added methods to GradingRecord Logic to facilitate creating/updating them.
UpdateOrCreateRecordsFor will batch put GradingRecords for a given SurveyGroup and StudentProject.
getFieldsForGradingRecord will return the fields that need to be set for a single GradingRecord entity given a StudentProject, GradingSurveyGroup and if it is an update a GradingRecord entity.
from django.conf.urls.defaults import *
urlpatterns = patterns('django.contrib.flatpages.views',
(r'^(?P<url>.*)$', 'flatpage'),
)