Fixes #632. Adds index for notes. This one needs rake db:migrate

Thanks jacannon.

git-svn-id: http://www.rousette.org.uk/svn/tracks-repos/trunk@698 a4c988fc-2ded-0310-b66e-134b36920a42

tracks/db/migrate/037_add_index_to_notes.rb

@@ -0,0 +1,11 @@
+class AddIndexToNotes < ActiveRecord::Migration
+  def self.up
+    add_index :notes, [:project_id]
+    add_index :notes, [:user_id]
+  end
+
+  def self.down
+    remove_index :notes, [:user_id]
+    remove_index :notes, [:project_id] 
+  end
+end