issue#18: show admin/moderator status on user tree

app/controllers/users_controller.rb

@@ -21,7 +21,8 @@ class UsersController < ApplicationController
     recursor = lambda{|user,level|
       if user
         @tree.push({ :level => level, :user_id => user.id,
-          :username => user.username, :karma => karmas[user.id].to_i })
+          :username => user.username, :karma => karmas[user.id].to_i,
+          :is_moderator => user.is_moderator?, :is_admin => user.is_admin? })
       end
 
       # for each user that was invited by this one, recurse with it

app/views/users/tree.html.erb

@@ -15,6 +15,11 @@
 
     <li><a href="/u/<%= u[:username] %>"><%= u[:username] %></a>
       (<%= u[:karma] %>)
+      <% if u[:is_admin] %>
+        (administrator)
+      <% elsif u[:is_moderator] %>
+        (moderator)
+      <% end %>
 
     <% prev_level = u[:level] %>
   <% end %>