constraints(SproutSubdomain) do
    devise_for :accounts, :skip => [:session, :password],
                                                      :controllers => {
                                                      :registrations => "users/accounts/registrations",
                                                      :confirmations =>  "users/accounts/confirmations" },
                                                      :class_name => 'Admin' do
      get "accounts/sign_up", :to => "users/accounts/registrations#new"
      get "accounts/signedup", :to => "users/accounts/confirmations#signedup", :as => "signedup_registration"
    end


    root :to => "users/accounts/registrations#new"
    # this root matcher above throws this error: Could not find devise mapping for path "/". Maybe you forgot to wrap your route inside the scope block? For example: devise_scope :user do match "/some/route" => "some_devise_controller" end

  end