[Patch] I made these 3 patches for the dbus build (slackware init support, custom user, disable use of pid)

[Kristof Vansant]

I would like these patches accepted :p so if anyone can review them :)

slackware detection and init install
https://freedesktop.org/bugzilla/show_bug.cgi?id=981

makes use of PID file optional (default enabled)
https://freedesktop.org/bugzilla/show_bug.cgi?id=1266

make the user running dbus custom (default messagebus)
https://freedesktop.org/bugzilla/show_bug.cgi?id=1267
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lupusBE (Kristof Vansant Belgium