Add support for Django 2.2, dropping 2.0 (#941)

* Add support for Django 2.2, dropping 2.0

* Fix build matrix for Python 2.7/3.4

Author: diox

.travis.yml

@@ -1,37 +1,36 @@
 language: python
-sudo: false
 install:
   - pip install tox
 script:
   - tox
-env:
-  - TOXENV=py27-1.11.X
-  - TOXENV=py34-1.11.X
-  - TOXENV=py34-2.0.X
-# for python 3.5 and 3.6, see https://github.com/travis-ci/travis-ci/issues/4794
-# for python 3.7, see https://github.com/travis-ci/travis-ci/issues/9815
 matrix:
   include:
+    - python: 2.7
+      env: TOXENV=py27-1.11.X
+    - python: 3.4
+      env: TOXENV=py34-1.11.X
     - python: 3.5
       env: TOXENV=py35-1.11.X
     - python: 3.6
       env: TOXENV=py36-1.11.X
-    - python: 3.5
-      env: TOXENV=py35-2.0.X
-    - python: 3.6
-      env: TOXENV=py36-2.0.X
     - python: 3.7
-      env: TOXENV=py37-2.0.X
+      env: TOXENV=py37-1.11.X
       dist: xenial
-      sudo: true
     - python: 3.5
       env: TOXENV=py35-2.1.X
     - python: 3.6
       env: TOXENV=py36-2.1.X
     - python: 3.7
       env: TOXENV=py37-2.1.X
       dist: xenial
-      sudo: true
+    - python: 3.5
+      env: TOXENV=py35-2.2.X
+    - python: 3.6
+      env: TOXENV=py36-2.2.X
+    - python: 3.7
+      env: TOXENV=py37-2.2.X
+      dist: xenial
+
 notifications:
   irc: "irc.freenode.org#django-compressor"
 after_success:

tox.ini

@@ -1,8 +1,8 @@
 [tox]
 envlist =
-    {py27,py34,py35}-1.11.X
-    {py34,py35,py36,py37}-2.0.X
+    {py27,py34,py35,py36,py37}-1.11.X
     {py35,py36,py37}-2.1.X
+    {py35,py36,py37}-2.2.X
 [testenv]
 basepython =
     py27: python2.7
@@ -19,7 +19,7 @@ commands =
     make test
 deps =
     1.11.X: Django>=1.11,<2.0
-    2.0.X: Django>=2.0,<2.1
     2.1.X: Django>=2.1,<2.2
+    2.2.X: Django>=2.2,<2.3
     -r{toxinidir}/requirements/tests.txt
     django-discover-runner