Bump to 0.3.1: Handle version conflict

Author: hmallen

setup.py

@@ -5,7 +5,7 @@
 
 setup(
     name="numpyencoder",
-    version="0.3.0",
+    version="0.3.1",
     author="Hunter M. Allen",
     author_email="allenhm@gmail.com",
     license="MIT",