Uses a more minimal Ubuntu Artful Server box.

vagrant/Vagrantfile

@@ -11,7 +11,7 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
 
   # Every Vagrant virtual environment requires a box to build off of.
   #config.vm.box = "bento/ubuntu-16.04"
-  config.vm.box = "ubuntu/artful64"
+  config.vm.box = "fso/artful64"
   config.vm.provision :shell, path: "bootstrap.sh", args: "#{ENV['GITHUB_AUTH_TOKEN']}"
 
   # Disable automatic box update checking. If you disable this, then