* gladeui/glade-widget-adaptor.c: added gwa_displayable_values_check() and use it to check 
  for displayable values in enums and flags properties in  glade_widget_adaptor_from_catalog()
  this way we can check every properties not only the ones that are explicited in the catalog.

* gladeui/glade-property-class.c: removed displayable values check from 
  glade_property_class_update_from_node()

* plugins/gtk+/gtk+.xml.in: added displayable values for
  GtkToolbar::icon-size
  GtkLabel::wrap-mode
  GtkIconView::selection-mode, orientation
  GtkRange::lower-stepper-sensitivity, upper-stepper-sensitivity
  GtkRuler::metric
  GtkList::selection-mode
  GtkCList::shadow-type, selection-mode, sort-type

svn path=/trunk/; revision=1462