Merge branch 'develop' into application-services-txn-reliability

CHANGES.rst

README.rst

register_new_matrix_user

setup.py

synapse/__init__.py

synapse/api/auth.py

synapse/api/constants.py

synapse/app/homeserver.py

synapse/config/registration.py

synapse/config/server.py

synapse/events/snapshot.py

synapse/federation/transport/server.py

synapse/handlers/_base.py

synapse/handlers/federation.py

synapse/handlers/presence.py

synapse/handlers/register.py

synapse/http/server.py

synapse/http/servlet.py

synapse/python_dependencies.py

synapse/rest/client/v1/register.py