Use a FileField instead of an ImageField in the admin_widgets test so…

… that folks without PIL can still run the tests.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8255 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/admin_widgets/models.py

@@ -19,7 +19,7 @@ def __unicode__(self):
 class Album(models.Model):
     band = models.ForeignKey(Band)
     name = models.CharField(max_length=100)
-    cover_art = models.ImageField(upload_to='albums')
+    cover_art = models.FileField(upload_to='albums')
 
     def __unicode__(self):
         return self.name