Don't ratelimit room create events
bump_presence_active_time when sending a message event
Look for name, topic in the event content rather than the event itself when persisting room name and topic events
Set a state_key for the topic and room name, otherwise they won't be treated as room state
Rate limit display names and avatar urls per request rather than per event.
more changelogs
Mock ratelimiter to make tests pass.
Merge branch 'hotfixes-v0.6.0'