Merge pull request #40 from jaap3/master

Add code coverage tool
Merge pull request #41 from jaap3/master

Extended tests
Merge pull request #42 from jaap3/master

All django serializer formats are supported
Merge pull request #43 from jaap3/master

Improve test coverage and Python 3 support
Added queryparams to dump_data view and added test for it.
Clean up tests and fixed a Python 3 error
Merge branch 'pconerly-add-app_label-queryparam-to-dump_data-view'