Not compatible with Django 1.9+

[jefmud]

I like the idea of this fork of the dumpdata as dumpdata-chunks. Dumpdata fails on large models and dumping the tables "chunk-wise" really makes sense as a good way to get around this issue.

Unfortunately, Django deprecated SortedDict (1.8) and changed the way BaseCommand (1.10) is handled so the code no longer works in the newest iterations of Django. It would be cool if you updated this tool for Django 1.10+.

If I get around to it, I may fork your module... but due to the production schedule on my current project, I had to write another method of serializing/deserializing the models.