Added SurveyRecordForm for viewing a SurveyRecord.
This is subclassed into GradeSurveyRecord form for the GradingProjectSurveys. This should replace the need for the read_only kwarg in SurveyTakeForm. A TODO to try and extract this has been added.
Fixes Issue 672.
Reviewed by: Lennard de Rijk
# Django settings for the example project.
DEBUG = True
TEMPLATE_DEBUG = DEBUG
ROOT_URLCONF = 'examples.urls'