Terminal Reporter

In fact it is an _almost_-exact copy of `ConsoleReporter`, but with a console proxy attached to it. This proxy redirects and pretty-formats the output to not-so-smart terminals or browsers like the  _PhantomJS_ or _IE_, the ones which have no grouping at all and just `console.log` and, optionally, `console.error` serves to the user. I personally used this to run a page from iTerm with `PhantomJS`

I am not totally sure if this Pull Request is totally complete to merge (more tests?), please leave a note if not.

[The output looks like this](http://grab.by/hnTW)