gnome-applets string pseudo-changes in 2.24

[Callum McKenzie <callum spooky-possum org>]

I have just added explicit type annotations for the GtkBuilder files to
the gnome-applets POTFILES.in in the gnome-2-24 branch. This will mean
that strings will be marked for translation in the GtkBuilder files that
may not have been previously. All the strings were previously in .glade
files and should be unchanged from the 2.22 release so hopefully
translations are already available.

I apologise for any inconvenience this may cause, but it is necessary to
avoid untranslated menus. See bug 555656 for details.

 - Callum