solnic/virtus — pull request #37 by senny (2011-11-15 18:04:25+00:00)
Title: allow to override attribute setters/getters

It should be possible to override attribute getters/setters defined by Virtus.

```ruby
class Article
include Virtus

attribute :author, String

def author
super || ''
end

def author=(name)
super unless name == 'Brad'
end
end
```