* commit '93eaeec75':
Remove Auth.check method (#6217)
add note about database upgrade
use the right function for when we're already in runInteraction
add user signature stream change cache to slaved device store
black
use stream ID generator instead of timestamp
make isort happy
apply PR review suggestions
fix formatting
add changelog
make changes from PR review
don't need to return the hidden column any more
really fix queries to work with Postgres
PostgreSQL, Y U no like?
remove extra SQL query param
add changelog file
apply changes from PR review
allow uploading keys for cross-signing
allow devices to be marked as "hidden"