Configure more CPUs for Vagrant

Author: mpolden

Vagrantfile

@@ -7,8 +7,9 @@ Vagrant.configure("2") do |config|
   config.vm.box = "bento/debian-8.7"
   config.vm.synced_folder ".", "/vagrant"
   config.ssh.forward_agent = true
-  config.vm.provider :virtualbox do |vb|
-    vb.customize ["modifyvm", :id, "--memory", "1024"]
+  config.vm.provider :virtualbox do |v|
+    v.memory = 1024
+    v.cpus = 2
   end
   config.vm.define "dev", primary: true do |dev|
     # Flask port