Up to date vagrant machine

Hi,

I have updated the Vagrant and Puppet files, huge refactor, using precise 64 box.

Tested on OSX Mountain Lion 10.8.2 with Virtualbox 4.2.1 and Vagrant 1.0.5.

The only concern about this pull request is that I have updated the README to use cabello instead of your repository, you can update the README after the merge.

Thanks,