beagle now support both dbus 0.23 and CVS

[Joe Shaw <joeshaw novell com>]

Hey,

I just checked in some configure check and conditional code so that
beagle should now build and work against both the old dbus API (in 0.23)
and the new dbus API (CVS/0.30).

I'm going to keep the NLD/SUSE snapshots building 0.23 however, since
things like galago haven't been updated yet.

Let me know if you run into any problems.

Joe