Fixing dependency version numbers and upgrading rpy2

setup.py

@@ -14,23 +14,24 @@ setup(
     include_package_data=True,
     python_requires='>=3.4.0',
     install_requires=[
-        'Flask',
-        'flask-cors',
-        'Flask-Script',
-        'flask-request-id-middleware',
-        'flask-compress',
-        'typing',
-        'jsonschema',
-        'celery[redis]',
-        'redis',
-        'numpy',
-        'scipy',
-        'pandas',
-        'sklearn',
-        'requests',
-        'PyYAML',
-        'pycryptodomex',
-        'rpy2',
+        'Flask==0.12.2',
+        'flask-cors==3.0.3',
+        'Flask-Script==2.0.6',
+        'flask-request-id-middleware==1.1',
+        'flask-compress==1.4.0',
+        'typing==3.6.2',
+        'jsonschema==2.6.0',
+        'celery[redis]==4.1.0',
+        'redis==2.10.6',
+        'numpy==1.13.3',
+        'scipy==0.19.1',
+        'pandas==0.20.3',
+        'sklearn==0.0',
+        'requests==2.18.4',
+        'PyYAML==3.12',
+        'pycryptodomex==3.4.7',
+        'rpy2==2.9.3',
+        'tzlocal',
         'flake8',
         'pytest',
         'pytest-runner',