fix janitor trial form

app/models/janitor_trial.rb

@@ -5,7 +5,7 @@ class JanitorTrial < ActiveRecord::Base
   after_create :promote_user
   validates_presence_of :user
   before_validation :initialize_creator
-  attr_accessible :user_id
+  attr_accessible :user_id, :user_name
   validates_inclusion_of :status, :in => %w(active inactive)
   before_validation :initialize_status
 

app/views/janitor_trials/new.html.erb

@@ -2,6 +2,8 @@
   <div id="a-new">
     <h1>New Janitor Trial</h1>
 
+    <%= error_messages_for :janitor_trial %>
+
     <%= simple_form_for(@janitor_trial) do |f| %>
       <%= f.input :user_name %>
       <%= f.button :submit, "Submit" %>