Allow downgraded setuptools for heroku

Author: jlubken

setup.py

@@ -3,7 +3,7 @@
 __version__ = "1.1.4"  # update VERSION in constants.py
 __author__ = "Predictive Healthcare @ Penn Medicine"
 
-from setuptools import setup, find_namespace_packages
+from setuptools import setup, find_packages
 
 
 setup(
@@ -19,7 +19,7 @@
         "Documentation": "https://codeforphilly.github.io/chime/",
     },
     package_dir={'': 'src'},
-    packages=find_namespace_packages(where='src', exclude=('tests')),
+    packages=find_packages(where='src', exclude=('tests')),
     install_requires=[
         "altair",
         "black",