update to tornado 4.0 and requests 2.3.0

Shared/lib/python2.7/site-packages/certifi/__init__.py

@@ -0,0 +1 @@
+from .core import where

Shared/lib/python2.7/site-packages/certifi/__main__.py

@@ -0,0 +1,2 @@
+from certifi import where
+print(where())

Shared/lib/python2.7/site-packages/certifi/core.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+certifi.py
+~~~~~~~~~~
+
+This module returns the installation location of cacert.pem.
+"""
+
+import os
+
+def where():
+    f = os.path.split(__file__)[0]
+
+    return os.path.join(f, 'cacert.pem')
+
+if __name__ == '__main__':
+    print(where())