add avatars

views/user/user.etlua

@@ -1,6 +1,7 @@
 <% if just_logged_in then %>
 <h1>Logged in successfully.</h1>
 <% end %>
+<img src="<%= avatar_url(user) %>">
 <h1><%= user.username %></h1>
 <% if user:is_guest() and user_is_me then %>
 <h2>You are a guest. An administrator needs to approve your account before you will be able to post.</h2>