Reverse the order of JSON imports to prefer the core python library

...if it exists.  If not, fall back on django.utils.simplejson.

This was already mentioned in Issue #3. The problem is that your solution is looking for an ImportError where a deprecation warning simply prints to the console. By simply swapping the order that the Django-extras tries to import, we have a solution that avoid deprecation warnings and is backwards compatible.

By the way, your django_extras\http__init__.py was already in the correct import order.

Please pip deploy as well.