just a hack to enable building glade for 2.0 while it doesnt run for 3.0.

Signed-off-by: Lucian Adrian Grijincu <lucian.grijincu@gmail.com>

	Some build fixes to help compile against GTK+ 3.0

	  and override property name and tooltip for the Glade environment to say:
	  "Initially Complete"/"Whether this page will initially be marked as complete
	  regardless of user input."

	  Fixed GtkComboBox/GtkIconView popup actions (was missing
	  the GtkWidgetClass actions such as add/remove parent)
	  Fixes bug 628146.

	  - Added MISC column to the project model (displayable information
	    about whether the widget is an internal child of a composite widget
	    or a frame's label or notebook's tab).

	* gladeui/glade-inspector.c: Fixed regression in the inspector; inspector
	  was failing to display information about frame labels and internal action
	  areas and such.

	  - Simplified code to use glade_widget_get_children() instead
	    of glade_widget_adaptor_get_children()
	  - Added treemodel stamp and attempt to stamp and validate all
	    GtkTreeIters.

	  placeholders.