[gtkada] Problems with attributes in XML files

[Arnaud Charlet]

> There is a problem in glib-xml.adb: Translate does not handle zero length
> strings properly. The attached diff against the 1.2.10 version of
> glib-xml.adb should fix that. 

Thanks, this fix will be in GtkAda 1.2.11.

(Note that we prefer contextual or unified diffs instead of simple diffs,
they are much easier to handle, thanks).

Cheers,

Arno