What's the Rails 3 replacement for ActiveRecord::Errors?

In Rails 2.3.8, this is an object:

```
>> ActiveRecord::Errors
=> ActiveRecord::Errors

```

In Rails 3.0.0rc, you get a NameError:

```
>> ActiveRecord::Errors
NameError: uninitialized constant ActiveRecord::Errors
 from (irb):2

```

I'm trying to make the [wizardly](http://github.com/gaveeno/wizardly) generator work with Rails 3. 

```
$ rails g wizardly_scaffold home

```

But it fails:

```
/Library/Ruby/Gems/1.8/gems/wizardly_gt-0.1.8.9/lib/validation_group.rb:150:
uninitialized constant ActiveRecord::Errors (NameError)

```

The line it refers to is this:

```
ActiveRecord::Errors.send :include, ValidationGroup::ActiveRecord::Errors

```

Earlier in the file, we see:

```
module ValidationGroup
  module ActiveRecord
...
    module Errors # included in ActiveRecord::Errors
      def add_with_validation_group(attribute, msg = I18n.translate('activerecord.errors.messages')[:invalid], *args, &block)
        add_error = @base.respond_to?(:should_validate?) ? (@base.should_validate?(attribute.to_sym) || attribute == :base) : true
        add_without_validation_group(attribute, msg, *args, &block) if add_error
      end
...
end

```