Merge pull request #2 from wanaryytel/master

Fixed a bug when CertificatePolicy doesn't have a description

esteid/digidocservice/models.py

@@ -118,7 +118,7 @@ def __init__(self, size, id, mime_type, content_type, digest_value, digest_type,
 
 
 class CertificatePolicy(BaseDigidocServiceObject):
-    def __init__(self, description, url, oid):
+    def __init__(self, url, oid, description=None):
         self.description = description
         self.url = url
         self.oid = oid