Updating for newest Vagrant and Ubuntu

* Re-wrote the `Vagrantfile` in v2 format.

* Updated the box to point to the standard Ubuntu 14.04 image.

* Updated Chef cookbooks to newest versions.

KNOWN ISSUES:
Currently the official cookbook from Opscode does NOT support Apache 2.4. As a result, this will not work at this time. It appears they are currently working on it and will update soon.
Replaced Chef-based provisioning with a script

The script installs and configures Apache, MySQL, and PHP
Merge pull request #5 from mattandersen/Ubuntu14.04

Update to Ubunutu 14.04 and removal of Chef provisioning