Merge pull request microsoft#151 from CatalystCode/sync-classifiers-and-travis

Ensure CI and PyPI Python versions match

Author: SergeyKanzhelev

.travis.yml

@@ -1,6 +1,8 @@
 language: python
 python:
 - '2.7'
+- '3.4'
+- '3.5'
 - '3.6'
 script:
 - pip install persist-queue

setup.py

@@ -52,6 +52,8 @@
         # that you indicate whether you support Python 2, Python 3 or both.
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
     ],
 
     # What does your project relate to?