update with changes from Production branch

db/migrate/20101117211209_add_index_to_feeds.rb

@@ -0,0 +1,9 @@
+class AddIndexToFeeds < ActiveRecord::Migration
+  def self.up
+		add_index :feeds, :device_id
+  end
+
+  def self.down
+		remove_index :feeds, :device_id
+  end
+end