Add statistics when minimization is done

[ayld]

We could print something like:

[INFO] You were using: 453 jars (322 transitive), with 5321 classes.
[INFO] Now using: 1 jar, 122 classes.

(these are real statistics from one of the tests btw ;) )

This can help the feel (lol!).

[tishun]

Fixed! Well ... partially :)

Will continue working on this after a few days of sleep

[ayld]

Whats not ready on this btw? I had a look at the API/current impl and it looked alright.

[tishun]

Not sure anymore ... lets close it for now.