Merge pull request #144 from matrix-org/erikj/logging_context

demo/start.sh

synapse/crypto/keyclient.py

synapse/federation/federation_base.py

synapse/federation/federation_server.py

synapse/handlers/_base.py

synapse/handlers/events.py

synapse/handlers/federation.py

synapse/handlers/message.py

synapse/handlers/presence.py

synapse/handlers/profile.py

synapse/handlers/room.py

synapse/handlers/typing.py

synapse/http/client.py

synapse/http/matrixfederationclient.py

synapse/http/server.py

synapse/notifier.py

synapse/storage/_base.py

synapse/util/__init__.py

synapse/util/async.py

synapse/util/distributor.py