[gtkada] GtkAda 1.2 -> 2.0

[Arnaud Charlet]

> Or rather Gtk+ 1.2 -> 2.0 as I don't know if Gtkada will have the same
> version numbering. I'm only wondering if much will break in the
> transistion to the new version of GtkAda/Gtk+ ? Is much porting of
> source code needed? 

GtkAda will follow the same major and minor version numbering. We will
keep the micro version for our own schedule.

Gtk+ sources come with a document explaining how to transition (don't
remember the name at hand, look in the doc or docs directory of gtk+).

GtkAda comes with a list of all the changes we've found when moving from
gtk+ 1.2 to 1.3 (future 2.0). This documentation can be found under
docs/2.0-transition.txt and is supposed to be exhaustive. If you find missing
info or if you have suggestion to make this documentation more explicit and
less terse, we will welcome contributions.

Arno