require membership to see post history

app/controllers/post_versions_controller.rb

@@ -1,4 +1,5 @@
 class PostVersionsController < ApplicationController
+  before_filter :member_only
   respond_to :html, :xml, :json
 
   def index

app/views/posts/show.html.erb

@@ -19,7 +19,6 @@
           <h1>Options</h1>
           <%= render "posts/partials/show/options", :post => @post %>
         </section>
-      <% end %>
 
         <section id="post-history">
           <h1>History</h1>
@@ -31,6 +30,8 @@
           </ul>
         </section>
 
+      <% end %>
+      
     </aside>
 
     <section id="content">