Merge branch 'develop' into matthew/search-all-local-users

docs/workers.rst

synapse/api/auth.py

synapse/app/homeserver.py

synapse/app/media_repository.py

synapse/app/synchrotron.py

synapse/config/server.py

synapse/crypto/event_signing.py

synapse/federation/transaction_queue.py

synapse/handlers/auth.py

synapse/handlers/deactivate_account.py

synapse/handlers/device.py

synapse/handlers/set_password.py

synapse/http/endpoint.py

synapse/http/server.py

synapse/module_api/__init__.py

synapse/notifier.py

synapse/push/pusherpool.py

synapse/replication/tcp/resource.py

synapse/rest/client/v1/admin.py

synapse/rest/client/v1/logout.py