title: Meteor new Date() invalid with mongodb 3.0.1 and autoform/simple schema
body: <p>I've trouble dealing with a <code>type: Date</code> into SimpleSchema having a defaultValue.
  In mongodb (3.0.1), the date entry have the time the meteor thread have been launch. The expected behaviour is to have "date" the insertion date of the object on the server.  </p>
  
  <p>lib/schema.js</p>
  
  <pre><code>Schema.DateCol = new SimpleSchema({
    date: {
      type: Date,
      defaultValue: new Date()
    },
    dateModified: {
      type: Date,
      autoValue: function () { return new Date(); }
    }
  });
  </code></pre>
  
  <p>client/home.html</p>
  
  <pre><code>    {{&gt; quickForm id="test" schema="Schema.DateCol" collection="DateCol" type="insert" }}
  </code></pre>
  
  <p>Into the mongo, after inserting two objects:</p>
  
  <ul>
  <li>meteor thread launch at "Wed May 20 2015 12:28:42 GMT+0200 (CEST)"</li>
  <li>both objects have been inserted at one minute of interval: the first at 
  "Wed May 20 2015 12:30:50 GMT+0200 (CEST)" and the second at "Wed May 20 2015 12:31:30 GMT+0200 (CEST)"</li>
  <li>the date field (defaultValue) for both object is: "Wed May 20 2015 12:28:42 GMT+0200 (CEST)"</li>
  </ul>
  
  <p>Object 1</p>
  
  <pre><code>{
    "_id": "PuME9jWwJJiw9diSC",
    "date": new Date(1432117722634),
    "dateModified": new Date(1432117850366)
  }
  </code></pre>
  
  <p>Object 2:</p>
  
  <pre><code>{
    "_id": "qqHqkN4YapWDsFhxx",
    "date": new Date(1432117722634),
    "dateModified": new Date(1432117890380)
  }
  </code></pre>
  
  <p>You'll fin enclose a repository Github with the error, using MongoDB 3.0.1 (I haven't this error on MongoDB 2.4): 
  <a href="https://github.com/JVercout/meteor-defaultValue-date-errored" rel="nofollow">https://github.com/JVercout/meteor-defaultValue-date-errored</a></p>
  
  <p>Any ideas?</p>