[gtkada] TR: gate for GtkAda 2.0.0

[Emmanuel Briot]

> You mean the Set_Property in glib-generic_properties.ads right? I have
> the GtkAda.cvs (this is the latest sources right?). I'll print it out
> and have a readthrough tonight to get a bit more familiar with gate and
> glib.

Yes.
See Glib.Properties, Glib.Generic_Properties, Glib.Properties.Creation,
and glib for documentation. 
If you do a greb on "Property" in testgtk, you will find a few examples
as well.

Emmanuel