Added exportvalidation module.  Started with point ordering.
Point ordering working and tested.
Important: Editing a scenario that doesn't exist reroutes to /new/
Changed singleton models to new URLs
Fixing mistakes in the model based on walking through the old NAADSM GUI.
Fixed a get or create bug for ForeignKey auto-fill.
Gave spreadModels names, simplified contact rate, defaulted wind direction.
Standardized name field for any model with frequent ForeignKey references.
Modified views so that the edit_entry redirect wouldn't indiscrimately catch all errors.
Merge remote-tracking branch 'origin/master'