* mandos (Client.enable): Bug fix: Start new immediate checker last to avoid race condition. (Client.disable): Optionally do not log message. (ClientDBus.disable): Do not log message if no signal should be sent. (string_to_delta): More informative error message. (main.cleanup): Emit D-Bus "ClientRemoved" signal for all clients. Do not emit any other signal. Move to after "mandos_dbus_service" is defined.