Check compat for python 3.4-3.6

- until everyone is on 3.6 we need to confirm things work on the most
recent versions

.gitlab-ci.yml

@@ -33,10 +33,22 @@ Go-py2.7:
   script:
     - python manage.py test
 
+Go-py3.4:
+  image: library/python:3.4
+  type: test
+  script:
+    - python manage.py test
+
+Go-py3.5:
+  image: library/python:3.5
+  type: test
+  script:
+    - python manage.py test
+
 Go-py3.6:
   image: library/python:3.6
   type: test
   script:
     - pip install coverage
-    - coverage run --source=go --omit=*migrations/*,*admin.py,*manage.py,*wsgi.py,*settings.py,*secret.py,*__init__.py,*.pyc,*templates/*,*static/* manage.py test 
+    - coverage run --source=go --omit=*migrations/*,*admin.py,*manage.py,*wsgi.py,*settings.py,*secret.py,*__init__.py,*.pyc,*templates/*,*static/* manage.py test
     - coverage html -i && grep pc_cov htmlcov/index.html | egrep -o "[0-9]+\%" | awk '{ print "covered " $1;}'