Advanced options

This PR adds "advanced options" to the Vagrant settings box. It also changes the default Vagrantfile to use the Vagrant Cloud, maintaining an option in the "advanced" section so you can unselect the use of Vagrant Cloud, which will then include the full box url int he Vagrantfile.

You can choose if you want to enable Windows compatibility (ON by default) and also the type of syncronized folder (NFS by default).

Removed the old lucid box.

The code coverage might decrease a little because of the boxUrl check in the BundleController, but those tests are actually a temporary solution that we need to work on. I will create a new branch and PR for implementation of functional tests using the Symfony WebTestCase component.

![screenshot from 2014-09-09 18 28 51](https://cloud.githubusercontent.com/assets/293241/4205244/872afdee-383e-11e4-9f2b-1eea82bc72a4.png)