improved copy for account registration/upgrade

app/views/users/_secondary_links.html.erb

@@ -1,6 +1,9 @@
 <% content_for(:secondary_links) do %>
   <menu>
     <li><%= link_to "Listing", users_path %></li>
+    <% if CurrentUser.is_anonymous? %>
+      <li><%= link_to "Sign up", new_user_path %></li>
+    <% end %>
     <% if @user && !CurrentUser.is_anonymous? %>
       <li>|</li>
       <% if @user.id == CurrentUser.id %>
@@ -10,6 +13,9 @@
       <% else %>
         <li><%= link_to "Send message", new_dmail_path(:dmail => {:to_id => @user.id}) %></li>
       <% end %>
+      <% if !CurrentUser.is_privileged? %>
+        <li><%= link_to "Upgrade", upgrade_information_users_path %></li>
+      <% end %>
       <li>|</li>
       <li><%= link_to "Sign out", session_path, :method => :delete %></li>
     <% end %>