Merge pull request #190 from SparkPost/vulnerable_dep

Bump version to 1.3.7

Author: orval

setup.py

@@ -6,7 +6,7 @@
 
 setup(
     name='sparkpost',
-    version='1.3.6',
+    version='1.3.7',
     author='SparkPost',
     author_email='[email protected]',
     packages=find_packages(),