Add more tests

Makefile

Pipfile

Pipfile.lock

contrib/perf/generate_batch_jrpcs.py

jussi/errors.py

jussi/handlers.py

jussi/listeners.py

jussi/middlewares/jussi.py

jussi/middlewares/limits.py

jussi/middlewares/statsd.py

jussi/request/http.py

jussi/serve.py

jussi/typedefs.py

jussi/urn.py

jussi/validators.py

tests/appbase_jrpc_calls.json

tests/conftest.py

tests/data/__init__.py

tests/data/configs/TEST_UPSTREAM_CONFIG.json

tests/data/jsonrpc/__init__.py