New panel framework

[Benedikt Meurer]

Jasper Huijsmans wrote:
> Hey all,

Jasper,

I haven't found the time to actuall try out the new panel. Just reading
through the documentation a bit. I stumbled over the
xfce_panel_plugin_set_data() and xfce_panel_plugin_get_data() functions
and was wondering why you added them? Wouldn't it be easier to use
GObject's dataset here? Just add a prerequisite on GObject for the
interface using g_type_interface_add_prerequisite(). It's very unlikely
that somebody will ever implement that interface in a non-GObject
derived type.

> Thanks,
> 	Jasper

Benedikt