Add basic ascii art functionality on "win" screen.

This relates to #54, and so it is in the category of silly features :)

Got inspired by listening to the latest nodeup podcast, so remembered that I opened that issue about more ascii art, and decided it was time to do something about it.

Consider this a first take at it.

I tried to mimick the code style (at least in the workshopper.js file), but please feel free to give hints in that direction as to how this could be improved.

Have a great weekend!