add navigation between sites

app/views/sites/show.html.erb

@@ -1,2 +1,3 @@
 <h1>Site: <%= @site.name %></h1>
-<p>Belongs to: <%= link_to @site.user.name, user_url(@site.user) %></p>
+<p>Belongs to: <%= link_to @site.user.name, user_url(@site.user, :subdomain => false) %></p>
+<p><%= link_to 'Home', root_url(:subdomain => false) %></p>

app/views/users/show.html.erb

@@ -9,6 +9,7 @@
     <td><%= link_to subdomain.name, subdomain %></td>
     <td><%= link_to 'Edit', edit_subdomain_path(subdomain) %></td>
     <td><%= link_to 'Destroy', subdomain, :confirm => 'Are you sure?', :method => :delete %></td>
+    <td><%= link_to "Visit #{root_url(:subdomain => subdomain.name)}", root_url(:subdomain => subdomain.name) %></td>
   </tr>
 <% end %>
 </table>