update setup with previous versions of hypertools and scipy

Author: lucywowen

setup.py

@@ -25,8 +25,8 @@
         'duecredit',
         'numpy>=1.14.2',
         'pandas>=0.22.0',
-        'hypertools',
-        'scipy>=0.13.3',
+        'hypertools==0.5.1',
+        'scipy==1.2.1',
         'matplotlib>=2.1.0',
         'seaborn>=0.8.1',
         'scikit-learn>=0.19.1',