title: use mongo uuid in mongoose
body: <p>I have the _id in mongo set to a uuid via node plug in "node-uuid" when I look at the value in robomongo it looks like this </p>
  
  <pre><code>"_id" : UUID("5fe6075a-8157-4dfc-8aab-3316ea9cbf17"),
  </code></pre>
  
  <p>however when I use mongoose to retrieve the value and send it to the client I get a lot of strange characters.</p>
  
  <p>"<em>id":"</em>�\u0007Z�WM���3\u0016ꜿ\u0017"</p>
  
  <p>the schema I'm using is </p>
  
  <pre><code>_id: {
      type: String,
      default: '',
      trim: true
  },
  </code></pre>
  
  <p>is there anyway to make this work?</p>
  
  <p>Thanks,</p>
  
  <p>R</p>