* gladeui/glade-command.c: Now add/remove parentless widget props from the project in 
	  command_add/remove.

	* gladeui/glade-widget.c: 
	  - glade_widget_dup_properties/glade_widget_copy_properties take 2 new args, whether copy
	    parentless widget properties or not, and whether to copy them exactly or not.
	  - added glade_widget_get_parentless_reffed_widgets() to return a list of reffed parentless
	    widgets.


svn path=/trunk/; revision=2045