added news updates ui

db/migrate/20111101212358_create_news_updates.rb

@@ -0,0 +1,12 @@
+class CreateNewsUpdates < ActiveRecord::Migration
+  def change
+    create_table :news_updates do |t|
+      t.column :message, :text, :null => false
+      t.column :creator_id, :integer, :null => false
+      t.column :updater_id, :integer, :null => false
+      t.timestamps
+    end
+    
+    add_index :news_updates, :created_at
+  end
+end