Migrating to the latest version means we now take advantage of new artisan commands.

* Initially, the composer create-project command needs to be advised
we're using a development version.
* way/generators has been updated to 3.0
* I don't know for sure that the laravel-ide-helper has been updated, so
it's been removed for now.
* Paths for some files have changed.
Some tweaks to the Vagrantfile

* Add a default private network address (192.0.2.10)
* Ensure that you can always access the git repo from within the VM
* Add vagrant-cachier