Tags

Adds 3 new variables:

- `VAGRANT_CPUS`: Defaults to '' which will use Vagrant's default when setting the cpu. It's 1 i believe. Can be used to set the amount of CPUs. It sets `vb.cpus` in the `Vagrantfile`
- `VAGRANT_MEMORY`: Defaults to '' which will use Vagrant's default when setting memory. Can be used to set the amount of Memory on MB. It sets `vb.memory` in the `Vagrantfile`
- `VAGRANT_RUN_PUPPET`: Defaults to '1' which will cause the provision section in the `Vagrantfile` and `builds/Vagtanfile` to run `puppet agent -t` if puppet is installed on the VM.

- Adds `VAGRANFILE` variable to the `parall:matrix:` in the vagrant component to allow users to define a Vagrantfile different from the default.
- Changes the `VM_NAME` to `BASE_BOX` in the `parall:matrix:` in the vagrant component to more align with the purpose of the variable.
- Adds the `.vagrant.d` folder, and makes it the default place for vagrant to download base boxes to.
- Adds better checking of the environment variables for the driver.
- Adds support in the driver for the `VAGRANTFILE` variable.
- Updates the cron job and the monitor scripts to use the new `.vagrant.d` folder.
- Adds an upgrade script that checks out the latest tag.
- Adds testing of the component when a different Vagrantfile is defined.
- Updates the README.md files.

See if this publishes the Vagrant component.