GtkPacker removal

[Tim Janik <timj gtk org>]

hi all,

recently the topic was braught up to get rid of GtkPacker
in Gtk+ proper.
GtkPacker is a container widget reasonably sane implemented,
modeled after a tcl container iirc.
however that widget doesn't seem to gain much use, in fact,
i've not seen a single third-party app that makes actuall
use of it. of course LBs and builders support it, and
gtkpacker.h is included in a bit of third party code, but
that's only because it introduces GtkAnchorType ;)

so unless people get back and tell me they use/like/need
GtkPacker, it's scheduled for removal.

(polling gtk-list as well to increase probability of
possible usage reports)

---
ciaoTJ