phpspec/phpspec2 — pull request #87 by liuggio (2012-12-24 12:10:37+00:00)
Title: added Formatter\Presenter\Differ\ArrayEngine

I created the `ArrayEngine`, it is very similar to the `StringEngine`
then I added to the application.

I did a lot of reverse eng. so let me know if I miss something.
If everything is ok, I'll procede with the `ObjectEngine`