title: Automatically fill a field with the name of the user that creates the object?
body: <p>I have a model, <code>Package</code>:</p>
  
  <pre><code>class Package(models.Model):
      VIP = models.BooleanField()
      name = models.CharField(max_length=200)
      contents = models.CharField(max_length=200)
      owner = # username that created this object
  </code></pre>
  
  <p>Whenever a user adds a new <code>Package</code> (through admin), I want that the <code>owner</code> to contain the name of this user. How can I do this?</p>