this commit is just to make policies equal and independent on various android
versions. support for http might be removed in the future across all versions.

after receiving a SignalMessage that can’t be decrypted because of broken sessions
Conversations will attempt to grab a new pre key bundle and send a new PreKeySignalMessage
wrapped in a key transport message.

in anticipations for muc services using registered nicks (and putting nicks
into the member list even if that user is offline) we need to remove that 'fake' user
from the online list when the real user comes online.

This may help on platforms that make a difference between ringtone volume and notification volume

show 'show password' toggle for all magically created accounts. make quicksy accounts magically created