Include tests with installation. We could live without this, but we would have to figure out how to run the tests from the source code on the installed package.

Author: rlhelinski

setup.py

@@ -71,7 +71,7 @@ def readme():
     'maintainer': 'Leland McInnes',
     'maintainer_email': '[email protected]',
     'license': 'BSD',
-    'packages': ['hdbscan'],
+    'packages': ['hdbscan', 'hdbscan.tests'],
     'install_requires': ['numpy',
                          'scikit-learn>=0.16',
                          'cython >= 0.17'],