Merge pull request #87 from piglop/fix_rendered_notes_migration

Fix rendered notes migration.

Rails 3.1+ doesn't support `save(bool)` anymore

db/migrate/20120412072508_add_rendered_notes.rb

@@ -9,7 +9,7 @@ class AddRenderedNotes < ActiveRecord::Migration
     # Call save! on each todo to force generation of rendered_todos
     i=0; max = Todo.all.count; start = Time.now
     Todo.all.each do |todo|
-      todo.save(false)
+      todo.save(:validate => false)
       i = i + 1
       if i%250==0
         elapsed_sec = (Time.now-start)