Bump up version to 0.2.1 jpadilla#34

Author: jpadilla

setup.py

@@ -9,7 +9,7 @@
 
 setup(
     name="PyJWT",
-    version="0.2.0",
+    version="0.2.1",
     author="Jeff Lindsay",
     author_email="progrium@gmail.com",
     description="JSON Web Token implementation in Python",