Clarify "real name" in contributor requirements

Check the state of prev_events a bit more thoroughly when coming over federation

add ip_range_whitelist parameter to limit where ASes can connect from

Revert "Try to not use as much CPU in the StreamChangeCache"

Try to not use as much CPU in the cache

Fix error on deleting users pending deactivation

Use simple_delete instead of simple_delete_one as commented

add GDPR erase param to deactivate API

Stop including access tokens in warnings in the log

allow non-consented users to still part rooms (to let us autopart them)

Add fast path to _filter_events_for_server