Django 1.8 compatibility - get_query_set should be renamed

[flurischt]

I'm currently on 1.7. Running manage.py check yields the following warning:

(venv)~/D/g/z ❯❯❯ python manage.py check 
../venv/lib/python2.7/site-packages/gcharts/__init__.py:42: RemovedInDjango18Warning: `GChartsManager.get_query_set` method should be renamed `get_queryset`.

[rhblind]

Hi, thanks for reporting.
This library is in desperate need for some care and love, and I have it on my list. I'll try to make some time for updating to 1.8 compatibility and hopefully python 3.x as well.