news category & episode can be empty

panikdb/emissions/models.py

@@ -266,8 +266,8 @@ class NewsItem(models.Model):
     image = models.ImageField(upload_to=get_newsitem_image_path, max_length=250, null=True, blank=True)
 
     tags = TaggableManager(blank=True)
-    category = models.ForeignKey('NewsCategory', verbose_name=u'Category', null=True)
-    emission = models.ForeignKey('Emission', null=True)
+    category = models.ForeignKey('NewsCategory', verbose_name=u'Category', null=True, blank=True)
+    emission = models.ForeignKey('Emission', null=True, blank=True)
 
     def __unicode__(self):
         return self.title