* configure.in: require GTK+ 1.1.5

* app/bezier_select.c
* app/channels_dialog.c
* app/global_edit.c
* app/layers_dialog.c
* plug-ins/film/film.c
* plug-ins/gfig/gfig.c
* plug-ins/xd/xd.c
* plug-ins/libgck/gck/gcklistbox.c: fixes for new scrolled window viewport
behavior

* libgimp/gimpwire.c
* app/xcf.c: use g_htonl and friends

* app/main.c: ditch some unused variables

* app/Makefile.am: removed unused pixmap references

-Yosh