gregbell/active_admin — pull request #2767 by lporras (2013-12-05 21:39:33+00:00)
Title: Dropdown actions for index

When adding many custom actions using index as table you get a large column for actions. This adds a 'dropdown' option to actions method

Some Examples:

To list default actions and customs actions:
```ruby
index do
selectable_column
column :title
actions dropdown: true do |post|
item "Preview", admin_preview_post_path(post)
end
end
```

To list custom actions without default_actions:

```ruby
index do
selectable_column
column :title
actions dropdown: true, default: false do |post|
item "Preview", admin_preview_post_path(post)
end
end
```