Update of GTK+ FAQ and Tutorial

[Trog <trog gtk org>]

I did an update of the FAQ and Tutorial over the weekend. Here are
the changes:

        * docs/gtkfaq.sgml: threads example from Erik Mouw.
            New question on GtkLabel background colors.
        * docs/gtk_tut.sgml:
          - Correct the example code callback
            function definitions.
          - Update the gtkdial example code, from Frans van Schaik.
          - Update setselection.c to current API.

I also uploaded a new packaged version of the Tutorial to
ftp://ftp.gtk.org/pub/gtk/tutorial containing the usual formats:
SGML, HTML, PS, DVI and text.

-tony


---
E-Mail: trog@gtk.org
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