add django1.11/python3 testing (#33216)

setup.py

@@ -107,12 +107,12 @@ setup(
         'Programming Language :: Python :: 2',
     ],
     install_requires=[
-        'django>=1.7',
+        'django>=1.11,<1.12',
         'gadjo',
-        'django-tables2',
+        'django-tables2>=1.5,<2.0',
         'django-jsonfield >= 0.9.3',
         'django-filter>1,<2',
-        'djangorestframework>=3.3,<3.4',
+        'djangorestframework>=3.4,<3.7',
         'file-magic',
         'requests',
         'sorl-thumbnail',

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 toxworkdir = {env:TMPDIR:/tmp}/tox-{env:USER}/fargo/{env:BRANCH_NAME:}
-envlist = py2-coverage-dj18-sqlite,py2-coverage-dj111-sqlite-pylint,py2-coverage-dj18-pg,{py2,py3}-coverage-dj111-pg
+envlist = {py2,py3}-dj111-{sqlite,pg}-coverage-pylint
 
 [testenv]
 usedevelop = True
@@ -13,10 +13,6 @@ setenv =
         FARGO_SETTINGS_FILE=tests/settings.py
         coverage: COVERAGE=--junitxml=test_results.xml --random --cov-report xml --cov-report html --cov=fargo/
 deps =
-        dj18: django>=1.8,<1.9
-        dj18: django-tables2<1.1
-        dj111: django>=1.11,<1.12
-        dj111: django-tables2>=1.5,<2.0
         pytest>=3.3.0,<4.1
         pg: psycopg2
         pylint<1.8
@@ -29,7 +25,6 @@ deps =
         pytest-freezegun
         django-webtest<1.9.3
         WebTest
-        djangorestframework>=3.3,<3.4
         mock
         py2: django-jsonfield<1.3
 commands =