Refactor the tests - remove copy()
Merge branch 'Dynamic_model_creation' into FutureResponse_v1

Conflicts:
	swaggerpy_test/resource_model_test.py
	swaggerpy_test/resource_operation_test.py
	swaggerpy_test/resource_response_test.py
	swaggerpy_test/resource_test.py
Refactor __call__ to smaller methods