[Fixed]-Tastypie for mongoengine in Django 1.9+

I have made few changes in django-tastypie-mongoengine to make it compatible with django 1.9+ along with django-tastypie 0.13.3. I have forked a copy of the github repository and updated changes. It works fine now.

Following is the link:https://github.com/gagan144/django-tastypie-mongoengine