Merge branch 'release-v0.2.3' of github.com:matrix-org/synapse

CHANGES.rst

VERSION

docs/client-server/howto.rst

docs/client-server/model/presence.rst

docs/client-server/model/profiles.rst

docs/client-server/model/protocol_examples.rst

docs/client-server/model/room-join-workflow.rst

docs/client-server/model/rooms.rst

docs/client-server/model/terminology.rst

docs/client-server/model/third-party-id.rst

docs/human-id-rules.rst

docs/specification.rst

jsfiddles/create_room_send_msg/demo.js

jsfiddles/event_stream/demo.js

jsfiddles/example_app/demo.details

jsfiddles/register_login/demo.js

jsfiddles/room_memberships/demo.js

synapse/__init__.py

synapse/federation/units.py

synapse/handlers/room.py