Remove GUI, run bootstrap as vagrant user instead of root

toolset/deployment/vagrant/Vagrantfile

@@ -6,10 +6,13 @@ Vagrant.configure("2") do |config|
   config.vm.box_url = "http://files.vagrantup.com/precise64.box"
   config.vm.network :forwarded_port, guest: 8080, host: 28080
   config.vm.provider :virtualbox do |vb|
-    vb.gui = true  
     vb.customize ["modifyvm", :id, "--memory", "2048"]
   end
   config.vm.synced_folder "../../..", "/FrameworkBenchmarks"
+  
+  # Use a non-standard value here as most home networks are 
+  # 192.168.X.X or 10.X.X.X and we cannot have a collision 
+  # with the host network
   config.vm.network "private_network", ip: "172.16.16.16"
-  config.vm.provision :shell, :path => "bootstrap.sh"
+  config.vm.provision :shell, :path => "bootstrap.sh", privileged: false
 end