test travis with latest django

Author: vinyll

.travis.yml

@@ -1,21 +1,21 @@
 language: python
 python:
-  - "2.6"
   - "2.7"
-  - "3.3"
+  - "3.8"
 env:
   - DJANGO_VERSION=1.4
   - DJANGO_VERSION=1.5
   - DJANGO_VERSION=1.10
   - DJANGO_VERSION=2.0
+  - DJANGO_VERSION=3.0
 install:
   - pip install Django==$DJANGO_VERSION
 script: python setup.py test
 
 # Django 2.0+ supports only Python 3.x.
 matrix:
     exclude:
-    - python: "2.6"
-      env: DJANGO_VERSION=2.0
     - python: "2.7"
       env: DJANGO_VERSION=2.0
+    - python: "2.7"
+      env: DJANGO_VERSION=3.0