chat: show encryption button with group chats: If the group chat use real jids, an encryption button is shown, displaying only non directed encryption plugins (as directed encryption plugins can't be used with MUCs).

[DEFAULT]
bridge = pb
log_level = debug
log_fmt = #[%%(levelname)s][%%(name)s] %%(message)s

[cagou]
no_certificate_validation = true
log_level = debug
log_fmt = [%%(levelname)s][%%(name)s] %%(message)s