change CRUD for budget groups and headings

To make it more consistent with the rest of the Admin panel,
the CRUD for budget groups and headings has been changed
from the old "all-in-one" form to a separate form for each resource.

spec/features/budgets/ballots_spec.rb

@@ -161,6 +161,34 @@ feature 'Ballots' do
         end
       end
 
+      scenario "the Map shoud be visible before and after", :js do
+        investment = create(:budget_investment, :selected, heading: new_york, price: 10000)
+
+        visit budget_path(budget)
+        click_link "States"
+        click_link "New York"
+
+        within("#sidebar") do
+          expect(page).to have_content "OpenStreetMap"
+        end
+
+        add_to_ballot(investment)
+
+        within("#sidebar") do
+          expect(page).to have_content investment.title
+          expect(page).to have_content "OpenStreetMap"
+        end
+
+        within("#budget_investment_#{investment.id}") do
+          click_link "Remove vote"
+        end
+
+        within("#sidebar") do
+          expect(page).not_to have_content investment.title
+          expect(page).to have_content "OpenStreetMap"
+        end
+      end
+
     end
 
     #Break up or simplify with helpers