[PATCH] Revert "dbus: update to 1.13.18"

[Ansuel Smith]

>
> This reverts commit 0fb5d3ed2cb31a0a6076d36fb7a668cfe5328c92.
>
>  root at finn:/# /etc/init.d/dbus start
>  dbus[2537]: Failed to start message bus: Failed to open "/dbus-1/system.conf": No such file or directory
>

The avahi package is also affected by this breakage and crash loop in
the current master.