seanwalbran/rspec_around_all — pull request #2 by rosenfeld (2013-08-08 13:25:28+00:00)
Title: Add support for config.around(:all) and config.around(:all_nested)

Useful for running before(:all) blocks inside a database transaction,
for instance:

```ruby
RSpec.configuration.before(:all_nested) do |group|
DB.transaction(savepoint: true, rollback: :always) do
group.run_examples
end
end
```