gregbell/active_admin — pull request #1435 by gregbell (2012-06-27 15:56:02+00:00)
Title: Added ActiveAdmin::DSL#include to allow inclusion of modules

It allows the inclusion of modules like such:

```ruby
module HelpSidebar

def self.included(resource)
resouce.sidebar "Help" do
"Call us for Help"
end
end

end

ActiveAdmin.register Post do
include HelpSidebar
end
```

I hope that this can become a pattern for plugins and the framework itself to include modules into the registration of resources.