Merge pull request #22 from Djailla/django31

Test against Django 3.1

Author: FlipperPA

.travis.yml

@@ -16,6 +16,7 @@ python:
 env:
   - TOXENV=dj22
   - TOXENV=dj30
+  - TOXENV=dj31
 
 cache:
   directories:

tox.ini

@@ -4,7 +4,7 @@
 # By moving it out of the way (~500MB), we trim test execution time by > 80%.
 toxworkdir = {homedir}/.toxenvs/django-click
 envlist =
-    dj{22,30},flake8
+    dj{22,30,31},flake8
 
 [testenv]
 usedevelop = true
@@ -16,6 +16,7 @@ deps =
     -rrequirements-test.txt
     dj22: django>=2.2,<2.3
     dj30: django>=3.0,<3.1
+    dj31: django>=3.1,<3.2
 commands = py.test -rxs --cov-report= --cov-append --cov djclick {posargs:djclick}