active_scaffold generate creates broken _spec file

[mcr]

The generated rspec file needs to call the submitted params "record" rather than the name of the model, otherwise, one gets
errors inside update_attributes, only it's really hard to see that, because rspec catches that exception, and forgets to print
the exception location.
I think that this fix involves rspec patches to make it more AS aware.

   it "creates a new Connection" do
     expect {
       -post :create, :connection => valid_attributes
       +post :create, :record => valid_attributes
     }.to change(Connection, :count).by(1)
   end