v9.0.0

Changelog

9286b3c show folders when receiving
c1edf24 fix race condition
3e56d4c use magic bytes instead of checking max
cec39ba allow changing curve
c02b4f1 fix: make sure that only pake messages are unencrypted
babfd5f add option to overwrite automatically
be5ceae prompt to overwrite
2131e99 use new pake
628043b fix: do not use part of secret as room name
876ce57 Transfer symlinks without touching their targets.