Merge pull request #744 from opdemand/vagrant_memory

chore(contrib/vagrant): lower memory to 2GB

Author: Matthew Fisher

contrib/vagrant/Vagrantfile

@@ -14,7 +14,7 @@ Vagrant.configure("2") do |config|
   end
 
   config.vm.provider :virtualbox do |vb, override|
-    vb.customize ["modifyvm", :id, "--memory", "4096"]
+    vb.customize ["modifyvm", :id, "--memory", "2048"]
     # Fix docker not being able to resolve private registry in VirtualBox
     vb.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
     vb.customize ["modifyvm", :id, "--natdnsproxy1", "on"]