Fix some tests for changes in rails 5

app/controllers/user_controller.rb

@@ -268,7 +268,7 @@ class UserController < ApplicationController
   def logout
     @title = t "user.logout.title"
 
-    if params[:session] == request.session_options[:id]
+    if params[:session] == session.id
       if session[:token]
         token = UserToken.find_by(:token => session[:token])
         token.destroy if token

app/views/layouts/_header.html.erb

@@ -80,7 +80,7 @@
             <%= yield :greeting %>
           </li>
           <li>
-            <%= link_to t('layouts.logout'), logout_path(:session => request.session_options[:id], :referer => request.fullpath) %>
+            <%= link_to t('layouts.logout'), logout_path(:session => session.id, :referer => request.fullpath) %>
           </li>
         </ul>
       </div>

app/views/user/logout.html.erb

@@ -4,6 +4,6 @@
 
 <%= form_tag :action => "logout" do %>
   <%= hidden_field_tag("referer", h(params[:referer])) %>
-  <%= hidden_field_tag("session", request.session_options[:id]) %>
+  <%= hidden_field_tag("session", session.id) %>
   <%= submit_tag t('user.logout.logout_button') %>
 <% end %>