use ResizeToFit instead of ResizeToFill

Author: Saurabh

fileupload/models.py

@@ -1,6 +1,6 @@
 from django.db import models
 from imagekit.models import ImageSpecField
-from imagekit.processors import ResizeToFill
+from imagekit.processors import ResizeToFit
 
 
 class Picture(models.Model):
@@ -12,7 +12,7 @@ class Picture(models.Model):
 
     #file = models.FileField(upload_to="pictures")
     file = models.ImageField(upload_to="pictures")
-    thumbnail = ImageSpecField([ResizeToFill(50, 50)], image_field='file',
+    thumbnail = ImageSpecField([ResizeToFit(height=50)], image_field='file',
             format='JPEG', options={'quality': 90})
     description = models.CharField(max_length=200, blank=True)
     slug = models.SlugField(max_length=50, blank=True)