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
[nosetests]
exclude=pymox
with-coverage=1
cover-package=soc
cover-erase=1
cover-html=1
cover-html-dir=coverageResults
#debug=nose.plugins.cover