Farm form

I added two class based forms with views

Forms:
NewFarmForm & EditFarmForm.
Views:
NewFarm & EditFarm

I took out the following views
newFarm & editFarm

I also added four tests to test each new form and view.

The NewFarmForm has a feature where it adds the memberorganization of the person creating the farm to the farm apon creation.  Theresa may want that changed for Salvation farms administrators.  
This can be taken out