Split SurveyForm into SurveyTakeForm and SurveyEditForm.
This allows for a more cleaner implementation of the Form code. And this will make it easier to break free from the getFields method in the future.
Also the getRoleSpecifcFields method and the this_user and project variables have been removed. They are deemed obsolete.
Reviewed by: Lennard de Rijk
Do not call takeGet when SurveyForm ValidationError occurs.
Problems occured when a SurveyRecord was specified in the SurveyForm. The SurveyRecord data reset the erroneous POST data. Further code reduction might be possible soonish.