Unify error pages (#674)

* Unify error pages

* Start travis

spec/controllers/admins_controller_spec.rb

@@ -35,7 +35,7 @@ describe AdminsController, type: :controller do
         @request.session[:user_id] = @user.id
         get :index
 
-        expect(response).to render_template(:not_found)
+        expect(response).to render_template(:greenlight_error)
       end
 
       it "renders the admin settings if an admin tries to acccess it" do

spec/controllers/application_controller_spec.rb

@@ -80,7 +80,7 @@ describe ApplicationController do
       routes.draw { get "user_not_found" => "anonymous#user_not_found" }
 
       get :user_not_found
-      expect(response).to render_template("errors/not_found")
+      expect(response).to render_template("errors/greenlight_error")
     end
 
     it "renders a 404 error if user is not given" do
@@ -92,7 +92,7 @@ describe ApplicationController do
       routes.draw { get "user_not_found" => "anonymous#user_not_found" }
 
       get :user_not_found
-      expect(response).to render_template("errors/not_found")
+      expect(response).to render_template("errors/greenlight_error")
     end
 
     it "renders a 500 error if any other error related to bbb api" do
@@ -104,7 +104,7 @@ describe ApplicationController do
       routes.draw { get "user_not_found" => "anonymous#user_not_found" }
 
       get :user_not_found
-      expect(response).to render_template("errors/internal_error")
+      expect(response).to render_template("errors/greenlight_error")
     end
   end
 end