save progress. added user feedback view and stuff

config/locales/en.yml

@@ -546,4 +546,9 @@ en:
     previous_label: '← Previous Page'
   file_template:
     no_template_label: "Empty File"
+  user_exercise_feedback:
+    easy: "it was easy"
+    some_what_easy: "it was somewhat easy"
+    some_what_difficult: "it was somewhat difficult"
+    difficult: "difficult"
 

config/routes.rb

@@ -86,6 +86,13 @@ Rails.application.routes.draw do
     end
   end
 
+  resources :user_exercise_feedbacks do
+    member do
+      get :reload
+      post :submit
+    end
+  end
+
   resources :interventions do
     member do
       post :clone