Implementing the tox and travis

.travis.yml

@@ -0,0 +1,11 @@
+language: python
+python:
+  - "3.6"
+  - "3.7"
+env:
+  - DJANGO_VERSION=2.0
+install:
+  - pip install Django==$DJANGO_VERSION
+  - pip install tox-travis
+  - pip install -q -r requirements-dev.txt
+script: tox