* Make sure the messagebus user and group are created, and block out uid/gid
556 for this
* Delete the dbus.pid file as part of a stop_postcmd (dbus doesn't delete its
own pid file)
* Clean up some bash'isms in the KDE detection configure code
* Make the strtod() Call more 4.X friendly by not passing hex to it
for informing applications about system events such as new hardware being
added, new users logging into an IM application, new software installed,
etc.
