Bump to version 0.6.21

jrief · jrief · commit 00a0c119d02b · 2018-08-15T10:03:00.000+02:00
diff --git a/adminsortable2/__init__.py b/adminsortable2/__init__.py
@@ -1 +1 @@
-__version__ = '0.6.20'
+__version__ = '0.6.21'
