Getting Started (Readme, Vagrant, Boostrap.sh)

WIP: https://assemblymade.com/helpful/wips/168

This PR does the following:

* Gets Vagrant working. Vagrant now provisions using vagrant_boostrap.sh which should be idempotent (pretty sure).

* Adds a boostrap.sh script for bootstrapping a local mac. **I need some help testing this**

* Cleans up the Readme.

Comments Welcome :smile: