* gladeui/glade-popup.[ch]
  - added packing actions to placeholders

* gladeui/glade-widget-action.[ch]: added "important" flag to GWActionClass

* gladeui/glade-widget-adaptor.[ch]:
  - parse important tag in gwa_action_update_from_node()

  - added new "important" parameter to glade_widget_adaptor_pack_action_add() and
    glade_widget_adaptor_action_add()

* gladeui/glade-xml-utils.h: addded GLADE_TAG_IMPORTANT tag

* plugins/gtk+/gtk+.xml.in: marked launch_editor actions as important

* gladeui/glade-inspector.c: make inspector popup include only normal actions.

* src/glade-project-window.c: added important actions to the toolbar.

svn path=/trunk/; revision=1403