gregbell/active_admin — pull request #2812 by seanlinsley (2013-12-22 18:40:13+00:00)
Title: Let tables handle arbitrary objects

This resolves #1713

Specifically to support a clean syntax for tables built from Hashes,
this commit enables you to use the normal clean `column` and `row`
syntax like this:

```ruby
table_for foo: 1, bar: 2 do
column :foo
column :bar
end
```

Note that `dom_id_for`, which `attributes_table_for` was already using
but `table_for` wasn't, is definied by Arbre.