* mandos (Client.disable): Rename keyword argument "log" to "quiet", with inverted sense. All callers changed. (ClientDBus.disable): Rename keyword argument "signal" to "quiet", with inverted sense. All callers changed. (main): Disable D-Bus use if bus name is not available on system bus. (main.cleanup): Bug fix: Only do "remove_from_connection" on clients when using D-Bus. * plugin-runner.c (main): Return EX_OSERR if a bad error happened when trying to open config file.