* Completeley rewritten schema generation
* Added support for python 2.7 and 3.4
* Restructured testing and build configuration
* Added nested request schemas
This rewrite completely replaces the public interface of the django rest schema generation library, so
further changes will be needed to re-enable and further extend the customization points one might want.
* separated drf_swagger and testproj modules, moved both out of project root
* added testing support via pytest and tox
* enabled Travis CI
* integrated coverage & Coveralls
* schema generation implemented via coreapi Document and openapi_codec
* schema interface selectable from the latest versions of swagger-ui and redoc
* feature parity with django-rest-swagger 2