Removing old artifacts

Author: sam-globus

Makefile

@@ -9,6 +9,7 @@ $(VIRTUAL_ENV_DIR):
 	$(VIRTUAL_ENV_DIR)/bin/python setup.py install
 
 release: $(VIRTUAL_ENV_DIR)
+        rm -rf dist
 	$(PYTHON_VERSION) setup.py sdist
 	# Assuming you have twine already in the sdist
 	pip install twine