Add Python 3.6 to CI services

.gitlab-ci.yml

@@ -19,9 +19,20 @@ python2:
   stage: test
   script: tox -e py27
 
-python3:
+python34:
+  image: python:3.4
   stage: test
-  script: tox --skip-missing-interpreters -e py34,py35
+  script: tox -e py34
+
+python35:
+  image: python:3.5
+  stage: test
+  script: tox -e py35
+
+python36:
+  image: python:3.6
+  stage: test
+  script: tox -e py36
 
 linters:
   image: python:3.5

.travis.yml

@@ -19,6 +19,8 @@ matrix:
       env: TOXENV=py34
     - python: 3.5
       env: TOXENV=py35
+    - python: 3.6
+      env: TOXENV=py36
     - python: pypy
       env: TOXENV=pypy
     - python: 2.7