Drop Django <1.11, add 2.2, 3.0; Drop Python 3.5, add 3.7, 3.8

.travis.yml

@@ -3,6 +3,8 @@ language: python
 python:
   - "2.7"
   - "3.6"
+  - "3.7"
+  - "3.8"
 install: pip install tox-travis
 script: tox
 deploy:
@@ -13,6 +15,6 @@ deploy:
   on:
     tags: true
     repo: mozilla/commonware
-    python: "3.6"
+    python: "3.7"
   password:
     secure: rfmIIYgx4otFHj3TxL/naC91zk1wRgY1Oh4NXH/BbHmLUmA5VME+75uvPXd4flsr4gqCERClZP52b0gIm3wxu2u7PK4HXwQfIH1Wg2SgLSiyV56TpEWdunk+I7gUpkacNwINdPg/RJJtkFn5WpUtXX8PDd2GjHLfKnXSZDCdmFU=

setup.py

@@ -20,14 +20,18 @@ setup(
         'Environment :: Web Environment :: Mozilla',
         'Intended Audience :: Developers',
         'Framework :: Django',
+        'Framework :: Django :: 1.11',
+        'Framework :: Django :: 2.2',
+        'Framework :: Django :: 3.0',
         'License :: OSI Approved :: BSD License',
         'Operating System :: OS Independent',
         'Programming Language :: Python',
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Topic :: Software Development :: Libraries :: Python Modules',
     ]
 )

tox.ini

@@ -1,19 +1,18 @@
 [tox]
 envlist =
-    py27-django{18}-extra,
-    py36-django{18,19,110,111}-extra,
-    py36-flake8,
+    py27-django{111}-extra,
+    py3{6,7,8}-django{111,22,30}-extra,
+    py37-flake8,
 
 [testenv]
 commands = fab test
 deps =
-    django18:  Django>=1.8,<1.9
-    django19:  Django>=1.9,<1.10
-    django110: Django>=1.10,<1.11
     django111: Django>=1.11,<1.12
+    django22: Django>=2.2,<2.3
+    django30: Django>=3.0,<3.1
     extra: -rrequirements.txt
 
-[testenv:py36-flake8]
+[testenv:py37-flake8]
 commands = flake8
 deps = flake8