opal/opal — pull request #135 by charliesome (2012-10-20 06:38:18+00:00)
Title: fix behaviour of puts on arrays to be closer to Ruby's

This code:

```ruby
puts [[1, 2], 3], 4
```

outputs this on Ruby:

1
2
3
4

and this on Opal:

[[1, 2], 3], 4

This commit fixes that