Update version to 0.2.1

Author: tdpauw

setup.py

@@ -10,7 +10,7 @@
 # This call to setup() does all the work
 setup(
     name="DMARCReporting",
-    version="0.2.0",
+    version="0.2.1",
     description="Simple tool to extract error reports from DMARC files",
     long_description=README,
     long_description_content_type="text/markdown",