Bump version to 2.1.3

Author: wichmannpas

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name='django-rest-authtoken',
-    version='2.1.2',
+    version='2.1.3',
     author='Pascal Wichmann',
     author_email='[email protected]',
     description='A simple token-based auth backend for Django Rest Framework storing cryptographically hashed tokens on server-side.',