FreeBSD 11.0 i386, XDM 1.1.11_6, XFCE 4.12_1 -- How to enable GUI shutdown and restart?

[Warren Block]

It is very difficult to follow a dozen separate questions inside a post. 
I think one of them was about shutdown/logout/restart.  This is from my 
xfce notes file.  Note that hal is not required for xfce at all, and I 
do not have it installed.

shutdown/reboot/logout
   as root, create /usr/local/etc/polkit-1/localauthority/50-local.d/org.freedesktop.consolekit.pkla

   (this is needed)
   [Restart]
   Identity=unix-group:operator
   Action=org.freedesktop.consolekit.system.restart
   ResultAny=yes
   ResultInactive=yes
   ResultActive=yes

   [Shutdown]
   Identity=unix-group:operator
   Action=org.freedesktop.consolekit.system.stop
   ResultAny=yes
   ResultInactive=yes
   ResultActive=yes


To enable logout dialog:
   Right-click logout icon on panel, Properties, First Button: Log Out Dialog