Add manifest for tox tests on travis

.gitignore

@@ -11,3 +11,4 @@ dist/
 .cache/
 env/
 tests/test_project_fixtures/*/.git/
+.tox/

.travis.yml

@@ -33,6 +33,9 @@ matrix:
     - python: 3.6
       env: TOXENV=py36-django20
 
+    - python: 3.6
+      env: TOXENV=lint
+
 install:
   - pip install tox
 

MANIFEST.in

@@ -0,0 +1,2 @@
+include README.md
+include LICENSE

setup.py

@@ -26,8 +26,8 @@ install_requirements = [
 ]
 
 test_requirements = [
-    'tox',
     'pytest',
+    'tox',
     'django>=1.9',
     'django-fake-database-backends',
     'flake8'