Prepare for 0.2.1

Author: fabaff

setup.py

@@ -19,7 +19,7 @@
 
 setup(
     name='volkszaehler',
-    version='0.1.3',
+    version='0.2.1',
     description='Python Wrapper for interacting with the Volkszahler API.',
     long_description=long_description,
     url='https://github.com/home-assistant-ecosystem/python-volkszaehler',