Implements #173

Public view for suggested actions as well as resources has been
completelly redesigned.

Private side for this feature has been adapted as well in order to meet
the requirements.

spec/features/admin/administrator_tasks_spec.rb

@@ -55,10 +55,6 @@ describe 'Administrator tasks' do
       expect(page).to have_button('Mark as solved')
     end
 
-    scenario 'shows the comments added by the user during the request' do
-      expect(page).to have_content(task.source.comments)
-    end
-
     context 'and the Mark as solved button is pressed' do
       before do
         click_button 'Mark as solved'