title: Using django-filer, can I chose the folder that images go into, from 'Unsorted Uploads'
body: <p>I'm using django-filer for the first time, and it looks great, and work pretty well.</p>
  
  <p>But all my images are being uploaded to the 'Unsorted Uploads' folder, and I can't figure out a way to put them in a specific one.  This strikes me as a fundamental feature, and given that it allows you create folders, this <strong>must</strong> be possible, right?  But I can't find it in the docs, and a quick look through the source didn't help me.</p>
  
  <p>I have a basic setup like:</p>
  
  <pre><code>class Story(models.Model):
      image = FilerImageField()
  
  class Gift(models.Model):
      # some stuff
  
  class GiftImage(models.Model):
      gift = models.ForeignKey(Gift)
      image = FilerImageField()
  </code></pre>
  
  <p>And I want GiftImage.image and Story.image to go into separate folders, so as to make sorting/searching easier for the admin user.</p>
  
  <p>I have tried</p>
  
  <pre><code>image = FilerImageField(upload_to='somewhere') # How a django ImageField would do it
  image = FilerImageField(folder='somewhere') # a guess
  image = FilerImageField(name='somewhere') # a guess
  image = FilerImageField(folder_name='somewhere') # another guess
  </code></pre>
  
  <p>All of these either give me a "TypeError: <strong>init</strong>() got an unexpected keyword argument ..." or just don't do what I was hoping.</p>
  
  <p>Cheers!</p>