Remove deprecated versions of python and django
Remove deprecated versions of python and django

python 3.3 is end of life
https://www.python.org/downloads/release/python-337/
django 1.7 is end of life
django 1.9 is end of life
django 1.10 will be end of life in december 2017 (Keeping it for now)
Add django 1.11 to the matrix so that we can test the other pull requests against it
add django 3.6 to the matrix
discolabs/django-shopify-auth,discolabs/django-shopify-auth