* gladeui/glade-design-view.c: pack toplevel widgets in GladeProject toplevels list order.

  * gladeui/glade-property.c: added special case for parentless widget properties
    on glade_property_set_value_impl() to show and hide new and old values.

  * gladeui/glade-editor-property.c: removed glade_widget_hide() call on
    glade_eprop_object_show_dialog() since now its handled on GladeProperty