Bump version number in setup.py

Author: mdbartos

setup.py

@@ -3,7 +3,7 @@
 from setuptools import setup
 
 setup(name='pipedream-solver',
-      version='0.2',
+      version='0.2.1',
       description='Interactive hydrodynamic solver for sewer/stormwater networks',
       author='Matt Bartos',
       author_email='mdbartos@umich.edu',