build(ci): Update travis.yml

.travis.yml

@@ -4,42 +4,16 @@ services:
   - mysql
   - postgresql
 python:
-  - "2.7"
   - "3.6"
   - "3.7"
+  - "3.8"
 env:
-  - DJANGO=1.11 DB=sqlite
-  - DJANGO=1.11 DB=postgres
-  - DJANGO=1.11 DB=mysql
-  - DJANGO=2.1 DB=sqlite
-  - DJANGO=2.1 DB=postgres
-  - DJANGO=2.1 DB=mysql
   - DJANGO=2.2 DB=sqlite
   - DJANGO=2.2 DB=postgres
   - DJANGO=2.2 DB=mysql
-  - DJANGO=3.0a1 DB=sqlite
-  - DJANGO=3.0a1 DB=postgres
-  - DJANGO=3.0a1 DB=mysql
-matrix:
-  exclude:
-    - python: "2.7"
-      env: DJANGO=3.0a1 DB=sqlite
-    - python: "2.7"
-      env: DJANGO=3.0a1 DB=mysql
-    - python: "2.7"
-      env: DJANGO=3.0a1 DB=postgres
-    - python: "2.7"
-      env: DJANGO=2.2 DB=sqlite
-    - python: "2.7"
-      env: DJANGO=2.2 DB=mysql
-    - python: "2.7"
-      env: DJANGO=2.2 DB=postgres
-    - python: "2.7"
-      env: DJANGO=2.1 DB=sqlite
-    - python: "2.7"
-      env: DJANGO=2.1 DB=mysql
-    - python: "2.7"
-      env: DJANGO=2.1 DB=postgres
+  - DJANGO=3.0 DB=sqlite
+  - DJANGO=3.0 DB=postgres
+  - DJANGO=3.0 DB=mysql
 before_install:
   - pip install -q 'flake8<3'
   - PYFLAKES_NODOCTEST=1 flake8 modeltranslation

setup.py

@@ -25,7 +25,7 @@ setup(
               'modeltranslation.management.commands'],
     package_data={'modeltranslation': ['static/modeltranslation/css/*.css',
                                        'static/modeltranslation/js/*.js']},
-    install_requires=['Django>=1.11', 'six'],
+    install_requires=['Django>=2.2', 'six'],
     download_url='https://github.com/deschler/django-modeltranslation/archive/%s.tar.gz' % version,
     classifiers=[
         'Programming Language :: Python',