version bump

Author: awdeorio

setup.py

@@ -14,7 +14,7 @@
     description="A light weight MapReduce framework for education.",
     long_description=LONG_DESCRIPTION,
     long_description_content_type="text/markdown",
-    version="0.4.0",
+    version="0.5.0",
     author="Andrew DeOrio",
     author_email="[email protected]",
     url="https://github.com/eecs485staff/madoop/",