title: Multiple providers in a single vagrant file?
body: <p>I've got a vagrant file that builds a local VM. I want to add the EC2 provider and have the option of either provisioning a local VM or one on EC2. </p>
  
  <p>Can I create configs for multiple providers in the same Vagrantfile and somehow choose which to run when I do <code>vagrant up</code>?</p>